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20 Best Rv Black Tank Sensor Cleaner (Jan 2023 Update)
Are you looking for the Best Rv Black Tank Sensor Cleaner? If so, you’ve come to the right place.
Choosing the Best Rv Black Tank Sensor Cleaner can be difficult as there are so many considerations, such as Camco, Unique, Walex. We have done a lot of research to find the Top 20 Best Rv Black Tank Sensor Cleaner available.
The average cost is $27.03. Sold comparable range in price from a low of $7.10 to a high of $94.45.
Based on the research we did, we think Extreme Cleaner by Happy Campers RV Marine Tank Sensor is the best overall. Read on for the rest of the great options and our buying guide, where you can find all the information you need to know before making an informed purchase.
20 Best Rv Black Tank Sensor Cleaner (20 Sellers)
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Reviewers Noted:
Cleaning
Features:
- Super clean tanks
- Sensors: restore poor working sensors
- Remove persistant odors
Features:
- Cleans and restores sensor probes in black tanks
- No driving necessary
- Fragrance-free
Reviewers Noted:
Performance
Features:
- Unbeatable odor prevention
- Convenient zipper bag for easy storage
- Formaldehyde-free
Reviewers Noted:
Performs well . Easy to use . Lacks durability . Well made . Leakiness
Features:
- Dislodges and flushes stubborn waste deposits left after holding tank is emptied
- Powerful, rotary cleaning action reaches corners and walls of tank
- One-quarter turn shut-off valve
Reviewers Noted:
Performance
Features:
- The jet stream spray from the no-fuss flush unit removes and flushes away deposits from inside the holding tank
- Installs permanently to waste or gray-water tank
- Rinses tank quickly and easily, connect no-fuss flush to outside wall of rv for easy hook-up
Reviewers Noted:
Performs well . Leakiness . Easy to use . Craftsmanship . Durability
Features:
- Completely flush out your holding tank
- Easy grip handle
- Quarter-turn pressure-sealed valve allow complete control of water flow
Reviewers Noted:
Craftsmanship . Ease of use . Performance
Features:
- Dislodge and flush stubborn waste deposits and odor-causing particles left after holding tank is emptied
- Allows complete control of water flow
- Includes 8 in.
Features:
- Restore accurate sensor readings
- For use in black and grey water tanks
- Easy to use
Features:
- Drop-in pod – convenient and effective
- Fast odor and solid waste elimination for dry campers
- Eliminates odors without masking
Features:
- Odor free: absolutely no chemical or sewer smell.
- Effective: in extreme hot and cold temperatures (over 100° f).
- Liquify: waste solids and most ordinary household tissue (no expensive special tissue needed).
Features:
- Odor free: absolutely no chemical or sewer smell
- Organic: biodegradable, environmentally friendly, septic tank friendly
- Effective: in extreme hot and cold temperatures (over 100° f)
Features:
- Ideal for holding tanks and portable toilets with limited ventilation
- Uses natural nitrate compounds to speed up the breakdown of waste and eliminate offensive odor
- Nitrates provide nutrients for waste-eating bacteria that produce odor-free nitrogen gas
Features:
- Bacteria/enzyme formula to digest waste and break down tissue
- Activates only in presence of material requiring digestion
- Advanced formula is stable, with a long shelf life and is not temprerature sensitive
Features:
- Extra strength formula eliminates odors and helps break down waste in the rv holding tank for up to 7 days
- Just one drop-in treats up to a 40 gallon tank
- Does not contain the toxic, formaldehyde-releasing ingredient bronopol
Features:
- Essential for rv black water holding tanks: eliminates odors and helps break down waste and tissue in your rv's black water holding tank
- Ultra concentrated formula: the toughest odor stopper; just one drop in treats up to a 40 gallon tank
- Not made with bronopol: does not contain the toxic, formaldehyde releasing ingredient bronopol
$36.99
4.3
Features:
- Make sure this fits by entering your model number.
- Cleans & restores black tank sensors in rv and boat holding tanks. normally works in 12-72 hours. no driving necessary.
$25.51$21.64
4.5
Reviewers Noted:
Performs well . Well made . Leakiness . Sturdiness . Instruction quality
Features:
- Dislodge and flush stubborn waste deposits and odor-causing particles left after holding tank is emptied
- Powerful rotary cleaning action
- Quarter-turn pressure-sealed valve allows you to selectively control water flow
$12.39
5.0
Features:
- Works around the clock in all weather conditions.
- 32 fluid oz.
- Type: bilge & holding tank.
$9.97
4.2
Features:
- Original formula
- 120ml treats an entire 151.4l tank
- Eliminates odours and lubricates sensors
$11.07
3.8
Features:
- Powerful rhino enzyme cleans tank in less than 24 hours
- Helps remove waste from tank walls
- Keeps tank sensors functioning efficiently
1. Extreme Cleaner By Happy Campers Rv Marine Tank Sensor

Product Details:
Directions: much like clothes in a washing machine, rinsing & agitation does most of the work, extreme cleaner simply softens & helps dissolve sludge & crud in holding tanks. use on-board or flexible down-the-toilet rinser for best results. note: waste tank sensors are historically temperamental, heavy cleaning will usually (not always) help restore scum crusted sensors. stationary units require more rinsing with less success. will not dissolve "wipes" or fix broken or corroded probes. not a tank treatment or deodorant, to keep odor free use happy campers organic holding tank treatment.
Specifications:
Weight | 2 lb |
Reviews:
We've been RVing for over 33 years and Full-TIme RV'ers now for just over 7 years. With being stationary for long periods of time the Black Water tank has a tendency to accumulate a thick and hard scale deposit over the bottom of the tank and in the drain elbow. Several times some of scale deposit has broken loose in sheets large enough to cover an block the tank drain. It has also caused the Black Water drain valve to leak when pieces of the hard scale builds up on the valve blade, causing the rubber gasket to wear down/break apart. EXTREME CLEANER is the only product that I've tried that has broken up the scale deposit enabling it to be flushed out with a normal clean-out. I've glad that we found this product.KMarshall
Good stuff. Works as advertised. Part of the Way Happy Campers system.timothymchale
This works very well for our rv! We like using this any is going to be sitting a while and it seems to be helping a lotjamie.c
2. Unique Sensor Cleaner For Black Water Tanks 32 Oz.

Product Details:
Misreading sensors is a very, very common problem amongst many rv users. it is extremely easy for these sensors to get covered by grease, soap, human waste, toilet paper, or anything else in your holding and cause misreads that can be misinterpreted as faulty or broken sensors. unfortunately many rvers choose to replace the sensor, thinking it is faulty, when oftentimes the issues comes from sensors needing to be cleaned. unique sensor cleaner uses a powerful blend of bacteria that goes to work quickly breaking down the waste that causes sensor cleaners to misread. and the way it works is simple.
Specifications:
Size | 32 oz. |
Type | Liquid |
Reviews:
On our last trip, we experienced problems with our black tank sensors. Last year we started using Unique treatment for the black tank. Due to the problems we recently experienced, we decided to try the Unique Tank Sensor cleaner. After filling the black tank to the top I used 1/2 bottle of the Unique Tank Sensor cleaner and let it sit for 7 days. After emptying the tank and giving it an additional rinse, I measured the amount of water installed in the tank. The sensor measured accurately at empty, 1/3 tank (15 gallons), 2/3 tank (30 gallons) and full tank. While not a real world example, the tank showed accurate measurements using clean water. Will be watching it closely on our next trip.Tom M.
We had a sensor that had been blocked for about 4 months. I tried several other so called remedies and it was still showing blocked. I purchased 2 bottles of Sensor Cleaner for Black Water Tanks. Followed the directions for use and used 1/2 bottle and filled the tank about 2/3 full. I let it set for over 24 hours, drove to the next campsite, emptied the black tank, still had the same problem. I repeated the procedures, filled the Black water tank and after letting it sit for the next day, the blocked sensor was showing an empty black water tank after dumping it. I now only use and recommend Unique products.Richard E.
As a full time RV'er, I've been looking for the best tank treatment. After our 2nd 5th wheel and several years under my belt, I found the proper products for tank treatments. Unique has the solutions. The tank treatment will liquify all solids quickly but I still had issues with sensors. I used the sensor treatment from Unique and kept the chemicals in the tank overnight. Next morning drained and flush. The sensors reset to "0". I would recommend Unique to anyone and everyone. Thanks Unique!James S.
3. Walex Porta-Pak Holding Tank Deodorizer, 10/bag

Product Details:
Fresh scent and formaldehyde and bronopol free waste treatment and deoderizer for waste holding tanks in recreational vehicles, bus, boat, camper or similar. pre measured sachets dissolve quickly and can be used to clear smells in sink drains too. 10 sachets per pack. biodegradable and safe on toilet waste tanks and seals.
Specifications:
Waste Holding Tank Treatment Type | Waste Digester |
Waste Holding Tank Treatment Unit Type | Pouch/Packet |
Reviews:
This works great for porta-potties. I have a Dometic 5 gallon porta pottie the family uses for camping. I do long three week off road, dispersed camping trips with the Dometic permanently inside the vehicle. Drop one of these paks in and you'll never smell a thing (aside from some of the fragrance). Since one pak is good for a giant RV waste tank, using one in a small porta potty is great – PROS= never smell a thing waste empties as blue water = you don't know what you are emptying since the entire contents have turned blue and have the fragrance of the pak.MAC
4. Camco Swivel Stik Flexible Rv Holding Tank Rinser, 55.5"

Product Details:
Specifications:
Units in Package | 1 |
Warnings | Warning: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov. |
Reviews:
Upon first hooking up this tool I turned on the water valve on it to see how it functioned. It was impressive. I had a clogged up tank on my 32 foot Keystone Sprinter travel trailer. This was due to me not using the “proper toilet paper”. My black water tank level indicator showed me that the level would never empty below 2/3. I drained the tank outside as much as possible, (2/3), and left the emptying valve open. I them ran my water hose with this tool attatched to the end of it inside my camper. I depressed the foot valve and inserted it into the tank. I sprayed the upper portion of the tank to clean it as much as possible. When it began to fill up I allowed the tool to go down into the tank below the water line, creating a vortex of water. I could hear the swivel end spinning like a propeller. When the tank was completely full, I turned off the water supply valve located on the tool. I listened to the tank begin to slowly empty. Then, I heard it suddenly GUSH out of the drain! PROBLEM SOLVED!!! I allowed the tank to empty. I began to wash the inside of the tank with the tool, and did this for about 10 minutes. I shut off the outside drain and began to clean the tank inside again. When the water filled up the truck tank this time it was with CLEAR WATER! I drained the tank again & checked my gauge. COMPLETELY EMPTY!!!! This is one fine product.c.p.
I have had an "issue" with the black tank in our RV where no matter what I tried the tank indicator always read as being 2/3 full, irregardless of what I did or tried to show the tank as Empty. I purchased this tool today, deployed it for about a 10 minute cycle and voila an empty tank. Wonderful. Easy to use, no muss, no fuss and easy to clean and sanitize after the fact. I would definitely recommend this product.Theloopsman
Bought out of a hope for ease of use and functionality. Right on the money for us. Our black tank was showing 2/3 after an empty, so clearly something was on a sensor. Ran it for may 5-7 minutes, and the sensor was now at empty as expected with the black valve open while using. If you have an RV that does not have a black tack flush, this may just help you as it did for us.J.B.T.
5. Valterra No-Fuss Flush Holding Tank Cleaner

Product Details:
Specifications:
Weight | 1 oz |
Reviews:
works great installed in grey water tanklwb13008
6. Camco Holding Tank Rinser With Shutoff

Product Details:
Specifications:
Item is Shipped at this Packaging Level | N |
Information Effective Date | 2015-12-21 12:00:00 |
Packaging Depth | 1.88 IN |
Packaging Height | 26.88 IN |
Packaging Width | 3.63 IN |
Package Weight | 0.419 |
Package Weight UOM | LB |
Net Packaged Quantity | 4 EA |
Product Design | Faucet Adapter |
Material | plastic |
Length | 26.88 in |
Faucet Attachment Type | Outdoor Hose Faucet |
Weight | 0.419 oz |
Manufacturer Warranty | Limited One Year Warranty: This product will be replaced to original purchaser if proven defective in workmanship or materials. Labor is not included in this warranty. |
Reviews:
Upon first hooking up this tool I turned on the water valve on it to see how it functioned. It was impressive. I had a clogged up tank on my 32 foot Keystone Sprinter travel trailer. This was due to me not using the “proper toilet paper”. My black water tank level indicator showed me that the level would never empty below 2/3. I drained the tank outside as much as possible, (2/3), and left the emptying valve open. I them ran my water hose with this tool attatched to the end of it inside my camper. I depressed the foot valve and inserted it into the tank. I sprayed the upper portion of the tank to clean it as much as possible. When it began to fill up I allowed the tool to go down into the tank below the water line, creating a vortex of water. I could hear the swivel end spinning like a propeller. When the tank was completely full, I turned off the water supply valve located on the tool. I listened to the tank begin to slowly empty. Then, I heard it suddenly GUSH out of the drain! PROBLEM SOLVED!!! I allowed the tank to empty. I began to wash the inside of the tank with the tool, and did this for about 10 minutes. I shut off the outside drain and began to clean the tank inside again. When the water filled up the truck tank this time it was with CLEAR WATER! I drained the tank again & checked my gauge. COMPLETELY EMPTY!!!! This is one fine product.c.p.
Cleaning poo has never been easier. The wand produces a decent amount of pressure. You need to turn and move the wand to get good spray coverage but for the money, this is acceptable in my mind. If I would change one thing, it would be good to have a splash guard to reflect any reflective sort that wants to come up and out the toilet hole. Easy to remedy but I'd say it's a design flaw.Anthony
Bought out of a hope for ease of use and functionality. Right on the money for us. Our black tank was showing 2/3 after an empty, so clearly something was on a sensor. Ran it for may 5-7 minutes, and the sensor was now at empty as expected with the black valve open while using. If you have an RV that does not have a black tack flush, this may just help you as it did for us.J.B.T.
7. Camco – 40113 – Holding Tank Rinser Kit

Product Details:
Dislodge and flush stubborn waste deposits and odor-causing particles left after holding tank is emptied allows complete control of water flow includes 8"hose quarter-turn pressure-sealed valve helps to selectively control water flow easy grip handle camco rv holding tank rinser with shutoff valve and connection hose helps to completely flush out the holding tank. it features an easy grip handle and quarter-turn pressure-sealed valve which allows complete control of water flow. the side-placed jets clean and rinse the smallest, hard to reach places. this rinser kit comes with a holding tank rinser plus an 8' hose. 2010 compliant faucet adapter fits most faucets with standard 15/16 – 28 female and 7/8 – 27 male threaded connections.
Specifications:
Length | 2.2 in |
Height | 5.6 in |
Width | 29.1 in |
Weight | 1.3 lb |
Reviews:
Upon first hooking up this tool I turned on the water valve on it to see how it functioned. It was impressive. I had a clogged up tank on my 32 foot Keystone Sprinter travel trailer. This was due to me not using the “proper toilet paper”. My black water tank level indicator showed me that the level would never empty below 2/3. I drained the tank outside as much as possible, (2/3), and left the emptying valve open. I them ran my water hose with this tool attatched to the end of it inside my camper. I depressed the foot valve and inserted it into the tank. I sprayed the upper portion of the tank to clean it as much as possible. When it began to fill up I allowed the tool to go down into the tank below the water line, creating a vortex of water. I could hear the swivel end spinning like a propeller. When the tank was completely full, I turned off the water supply valve located on the tool. I listened to the tank begin to slowly empty. Then, I heard it suddenly GUSH out of the drain! PROBLEM SOLVED!!! I allowed the tank to empty. I began to wash the inside of the tank with the tool, and did this for about 10 minutes. I shut off the outside drain and began to clean the tank inside again. When the water filled up the truck tank this time it was with CLEAR WATER! I drained the tank again & checked my gauge. COMPLETELY EMPTY!!!! This is one fine product.c.p.
Bought out of a hope for ease of use and functionality. Right on the money for us. Our black tank was showing 2/3 after an empty, so clearly something was on a sensor. Ran it for may 5-7 minutes, and the sensor was now at empty as expected with the black valve open while using. If you have an RV that does not have a black tack flush, this may just help you as it did for us.J.B.T.
8. Camco – 41146 – Tst Probe Cleaner 32 Oz

Product Details:
Specifications:
Length | 2.5 in |
Height | 5 in |
Width | 7.6 in |
Weight | 2.4 lb |
Reviews:
9. Unique Rv Digest-It Black Tank Treatment – Concentrated Drop-In Pod, Rapid-Dissolve Packet Toilet Treatment – Eliminates Odors, Breaks Down Waste

Product Details:
Unique rv digest-it's powerful blend of bio-enzymatic cleaners quickly digests solid waste and residual sludge build-up inside your black and gray holding tanks, preventing backups and clogs from happening in the first place. its advanced blend of bio-enzymatic cleaners works to remove odor from your holding tanks, infusing them with odorless enzymes, so your holding tanks can remain odor-free. designed to work specifically with the unique method, rv digest-it digests all brands of toilet paper and maintains properly working tank sensors and level gauges. the proprietary blend of activated bio-enzymatic cleaners is proudly made in the usa and contains no formaldehyde or bronopol.
Specifications:
Assembled Product Weight | 3.15 lb |
Contained Battery Type | 1 |
Assembled Product Dimensions (L x W x H) | 18.00 x 3.00 x 9.19 Inches |
Reviews:
I was skeptical at first since the “blue stuff” had such a strong odor and made me feel like it was doing its job. I tried Unique from a recommendation and did not smell much, so was not so sure it was working. However, seeing all the solids broken down and no odor coming up from the toilet, I was sold. I use the pods in the toilet and the powder mix in the kitchen and bathroom sinks. GREAT STUFF!Charles P.
I've been RVing since I was a kid. My mom and dad started us with a pop up camper and moved to the Class A. I've personally had 5 different RVs. 3 Class C's and 2 Class A's. In all of them I used the "Blue/Green" chemical and they seemed to work well. I've recently been introduced to the Unique products and decided to give them a try. I can honestly say that the Unique treatment, dissolves waste much better than anything else I've ever used. It's very noticeable when you flush your tank. I will continue to use the Unique products for as long as I am RVing. Thanks for such a great product.Scott L.
We used the holding tank drop in pods for the first time and could not believe what a difference it made in our RV. After I saw the short video clip on the pods, I figured why not try them. Wow….I am so glad that I ordered them. They came pretty quick after I ordered them. We are about to winterize our RV for the winter but make no mistake….the package of pods is on the top shelf in the bathroom!! Thank you.Patricia F.
10. Happy Campers Organic Rv Holding Tank Treatment – 130 Treatments

Product Details:
Not only is happy camper a very effective odor neutralizer, it is also very cost effective. happy campers highly concentrated water-activated mineral blend eliminates odor without covering it up with perfume like many of the chemical deodorant treatments. happy camper works most like an enzyme or bioactive treatment but is not affected by residuals. happy campers performance is not affected by extreme hot or cold. happy camper is a highly concentrated monohydrate blend of minerals and micro nutrients with enough waste treating power that 1 scoop of happy camper will treat a 40 gallon black tank.
Specifications:
Weight | 8 lb |
Reviews:
I previously wrote a glowing review of this product and the people who sell it. I have to take it all back. My review was based on previous purchases and experience with this product and sadly this last purchase failed miserably. The product DID NOT WORK and furthermore my inquiry to the sellers got absolutely zero response. The product is noticeably changed from previous purchases and I have to guess the formula has changed. Based on my current experience with the product and the total lack of communication from the seller I would warn you strongly to FIND ANOTHER PRODUCT!!!brownfambamboo
I purchased this when I couldn't get RV Digest-It because I heard it worked great. I used it for a few months and it works ok but not great. I had the big powder container and flushed tank and started fresh with this product the amount it said to use and it did not always break down waste inside tank especially if it weather was to cold or to hot outside. Product has no smell which is good. To any RVers out there looking for a fantastic product try the liquid RV Digest-It. Happy camping 🙂Sunshine
I have used this for 3 years now- I use it in black and grey tanks. After dumping the tanks, I add 4 scoops to my 90 gallon black tank with at least 5 gallons of water… I also add 1/4 cup of blue Dawn dishsoap every other time. I add 2 scoops to my kitchen grey tank and it stops the food particles in there from getting smelly. If my shower/washing machine grey tank starts to smell- I will give that a soak with a couple of scoops and some Dawn. This is definitely a “must have” for healthy tanks.lucy.c
11. Happy Campers Organic Rv Holding Tank Treatment – 64 Treatments

Product Details:
Environmentally friendly happy campers products are environmentally friendly made up of a completely safe blend of concentrated natural minerals and micro nutrients that are good for septic tanks. this unique blend is biodegradable, uses absolutely no formaldehyde or dangerous chemicals and digests waste as well as most household tissue. reduces maintenance costs the happy campers natural holding tank treatment is designed to work in extreme climates and last longer than any competitive rv holding tank deodorizing product on the market. compare happy campers effectiveness yourself to see just how effective happy campers is at eliminating holding tank odors as well as saving you money and time while doing it. happy campers will eliminate odors not only in your rv's black water and gray water holding tanks, but will eliminate odors even in your washing machine if you can't get a bad smell out of your clothes, just add a scoop of happy campers without soap – you'll like the results. find out for yourself, why so many people are using and loving happy campers odor eliminator. odor free eliminates odors in the rv holding tank. if theres a problem, message us it says it all.
Specifications:
Weight | 4 lb |
Reviews:
I previously wrote a glowing review of this product and the people who sell it. I have to take it all back. My review was based on previous purchases and experience with this product and sadly this last purchase failed miserably. The product DID NOT WORK and furthermore my inquiry to the sellers got absolutely zero response. The product is noticeably changed from previous purchases and I have to guess the formula has changed. Based on my current experience with the product and the total lack of communication from the seller I would warn you strongly to FIND ANOTHER PRODUCT!!!brownfambamboo
I purchased this when I couldn't get RV Digest-It because I heard it worked great. I used it for a few months and it works ok but not great. I had the big powder container and flushed tank and started fresh with this product the amount it said to use and it did not always break down waste inside tank especially if it weather was to cold or to hot outside. Product has no smell which is good. To any RVers out there looking for a fantastic product try the liquid RV Digest-It. Happy camping 🙂Sunshine
I have used this for 3 years now- I use it in black and grey tanks. After dumping the tanks, I add 4 scoops to my 90 gallon black tank with at least 5 gallons of water… I also add 1/4 cup of blue Dawn dishsoap every other time. I add 2 scoops to my kitchen grey tank and it stops the food particles in there from getting smelly. If my shower/washing machine grey tank starts to smell- I will give that a soak with a couple of scoops and some Dawn. This is definitely a “must have” for healthy tanks.lucy.c
12. Star Brite 76332 32 Oz Odor Away Holding Tank Treatment

Product Details:
Specifications:
Waste Holding Tank Treatment Type | Waste Digester |
Waste Holding Tank Treatment Unit Type | Liquid |
Reviews:
13. Camco Rhino Holding Tank Treatment 16 Oz 41512

Product Details:
Features a bacteria/enzyme to digest waste and break down tissue for easy biodegradation. natural formulation will digest waste, tissue, fats and proteins. will activate only in the presence of material requiring digestion. all components are environmentally friendly and biodegradable. two-ounces can treat up to 40 gallons. features a fresh pine scent.
Specifications:
Length | 2.5 in |
Height | 2.5 in |
Width | 8.6 in |
Weight | 1.2 lb |
Reviews:
14. Camco – 41556 – Tst Max Lavender Drop-Ins 10/bag

Product Details:
The tst max drop-ins help control unwanted odors and break down waste and tissue in your black water holding tank. the easy to use drop-ins contain a special chemical that helps break down waste, and a blend of lavender-scented surfactant oils that trap unwanted odors in your tank, making your camping experience more enjoyable. the drop-ins are rv and marine approved, non-formaldehyde and safe for all septic tanks-they're even great for portable camping toilets! each bag comes with 10 drop-ins.
Specifications:
Waste Holding Tank Treatment Type | Waste Digester |
Waste Holding Tank Treatment Unit Type | Pouch/Packet |
Reviews:
Okay, so we're wrapping-up our first year or RV ownership, and these are the first black-tank treatment we tried. Not always super-effective, but there may have been other variables which impacted their effectiveness: How much debris is left in black-tank, how much water is added to the empty tank when adding these, how much waste is in the tank, how hot it is, etc. In 90-degree weather, and an RV sitting unused, we haven't found a perfect solution to keep all odors at bay. I have started coupling these with the Campco liquid black-tank treatment to increase effectiveness. If you use these, follow the instructions and add whatever amount of water to the black tank along with them. It's also best to add prior to leaving campsite, so that the road motion and help agitate the water in the tank and help dissolve the membrane, so these don't sit in a coagulated mess on the bottom of the tank. It's trial-and-error. These aren't the best, they aren't the worst. But my bet is they are only one of 2-3 strategies you will need to use–especially during the hot, summer months–to keep your black tank from being smelly. **Be sure you keep the resealable bag sealed tightly! Humidity will be your enemy if you don't.**K.
I recently ordered TST Max RV toilet treatment drop-Ins. This bag contains 15 individual treatment pods. They help break down waste and toilet tissue while also helping stop odors for up to 7 days. They do not contain formaldehyde, pesticides or biocides. One pod treats up to 40 gallons. They have a lovely lavender scent to help mask any unpleasant odors. The bag has detailed instructions on how to use and store the product as well as warning labels and first aid instructions. We used some of these pods in our RV camping over the weekend and was very pleased with how well they performed.oldnavygirl2u
These septic tank drop-in tablets emits a pleasant lavender smell. They are individually wrapped, like detergent pods. Per the ingredient lists there are no harmful chemicals. I treat my septic tank once a month in order to prevent clogging. These are excellent for breaking down waste and tissue. I like the simplicity of this treatment. One drop-in and you're done.BNP
15. Camco – 41614 – Tst Max Ocean Breeze Drop-Ins 15/b

Product Details:
Specifications:
Waste Holding Tank Treatment Type | Waste Digester |
Waste Holding Tank Treatment Unit Type | Pouch/Packet |
Reviews:
Okay, so we're wrapping-up our first year or RV ownership, and these are the first black-tank treatment we tried. Not always super-effective, but there may have been other variables which impacted their effectiveness: How much debris is left in black-tank, how much water is added to the empty tank when adding these, how much waste is in the tank, how hot it is, etc. In 90-degree weather, and an RV sitting unused, we haven't found a perfect solution to keep all odors at bay. I have started coupling these with the Campco liquid black-tank treatment to increase effectiveness. If you use these, follow the instructions and add whatever amount of water to the black tank along with them. It's also best to add prior to leaving campsite, so that the road motion and help agitate the water in the tank and help dissolve the membrane, so these don't sit in a coagulated mess on the bottom of the tank. It's trial-and-error. These aren't the best, they aren't the worst. But my bet is they are only one of 2-3 strategies you will need to use–especially during the hot, summer months–to keep your black tank from being smelly. **Be sure you keep the resealable bag sealed tightly! Humidity will be your enemy if you don't.**K.
I recently ordered TST Max RV toilet treatment drop-Ins. This bag contains 15 individual treatment pods. They help break down waste and toilet tissue while also helping stop odors for up to 7 days. They do not contain formaldehyde, pesticides or biocides. One pod treats up to 40 gallons. They have a lovely lavender scent to help mask any unpleasant odors. The bag has detailed instructions on how to use and store the product as well as warning labels and first aid instructions. We used some of these pods in our RV camping over the weekend and was very pleased with how well they performed.oldnavygirl2u
These septic tank drop-in tablets emits a pleasant lavender smell. They are individually wrapped, like detergent pods. Per the ingredient lists there are no harmful chemicals. I treat my septic tank once a month in order to prevent clogging. These are excellent for breaking down waste and tissue. I like the simplicity of this treatment. One drop-in and you're done.BNP
16. Unique Sensor Cleaner For Black Water Tanks 2 Pack – 4 Treatments

Product Details:
Unique sensor cleaner is simply the strongest, most effective sensor cleaner available. sensor cleaners specialty formula targets and eliminates the waste in your black tank that causes sensor misreads and malfunctions. unique sensor cleaner also erases years of neglect by breaking down even old waste and eliminating it once and for all. in fact, unique sensor cleaner is so powerful it can even restore sensors in a permanently parked rv! best of all, it is non-toxic, eco-friendly, and proudly made here in the usa.
Specifications:
Assembled Product Weight | 4.66 lb |
Contained Battery Type | 1 |
Assembled Product Dimensions (L x W x H) | 3.15 x 6.30 x 9.00 Inches |
Reviews:
On our last trip, we experienced problems with our black tank sensors. Last year we started using Unique treatment for the black tank. Due to the problems we recently experienced, we decided to try the Unique Tank Sensor cleaner. After filling the black tank to the top I used 1/2 bottle of the Unique Tank Sensor cleaner and let it sit for 7 days. After emptying the tank and giving it an additional rinse, I measured the amount of water installed in the tank. The sensor measured accurately at empty, 1/3 tank (15 gallons), 2/3 tank (30 gallons) and full tank. While not a real world example, the tank showed accurate measurements using clean water. Will be watching it closely on our next trip.Tom M.
We had a sensor that had been blocked for about 4 months. I tried several other so called remedies and it was still showing blocked. I purchased 2 bottles of Sensor Cleaner for Black Water Tanks. Followed the directions for use and used 1/2 bottle and filled the tank about 2/3 full. I let it set for over 24 hours, drove to the next campsite, emptied the black tank, still had the same problem. I repeated the procedures, filled the Black water tank and after letting it sit for the next day, the blocked sensor was showing an empty black water tank after dumping it. I now only use and recommend Unique products.Richard E.
As a full time RV'er, I've been looking for the best tank treatment. After our 2nd 5th wheel and several years under my belt, I found the proper products for tank treatments. Unique has the solutions. The tank treatment will liquify all solids quickly but I still had issues with sensors. I used the sensor treatment from Unique and kept the chemicals in the tank overnight. Next morning drained and flush. The sensors reset to "0". I would recommend Unique to anyone and everyone. Thanks Unique!James S.
17. Camco Rv Swivel Stik Tank Rinser With Shutoff Valve

Product Details:
Specifications:
Item is Shipped at this Packaging Level | N |
Information Effective Date | 2015-12-30 12:00:00 |
Packaging Depth | 1.51 IN |
Packaging Height | 34.75 IN |
Packaging Width | 3.63 IN |
Package Weight | 0.61 |
Package Weight UOM | LB |
Net Packaged Quantity | 4 EA |
Product Design | Flow Valve |
Material | multi |
Length | 34.75 in |
Faucet Attachment Type | Outdoor Hose Faucet |
Weight | 0.61 oz |
Manufacturer Warranty | Limited One Year Warranty: This product will be replaced to original purchaser if proven defective in materials or workmanship. Labor is not included in this warranty. |
Reviews:
Upon first hooking up this tool I turned on the water valve on it to see how it functioned. It was impressive. I had a clogged up tank on my 32 foot Keystone Sprinter travel trailer. This was due to me not using the “proper toilet paper”. My black water tank level indicator showed me that the level would never empty below 2/3. I drained the tank outside as much as possible, (2/3), and left the emptying valve open. I them ran my water hose with this tool attatched to the end of it inside my camper. I depressed the foot valve and inserted it into the tank. I sprayed the upper portion of the tank to clean it as much as possible. When it began to fill up I allowed the tool to go down into the tank below the water line, creating a vortex of water. I could hear the swivel end spinning like a propeller. When the tank was completely full, I turned off the water supply valve located on the tool. I listened to the tank begin to slowly empty. Then, I heard it suddenly GUSH out of the drain! PROBLEM SOLVED!!! I allowed the tank to empty. I began to wash the inside of the tank with the tool, and did this for about 10 minutes. I shut off the outside drain and began to clean the tank inside again. When the water filled up the truck tank this time it was with CLEAR WATER! I drained the tank again & checked my gauge. COMPLETELY EMPTY!!!! This is one fine product.c.p.
Cleaning poo has never been easier. The wand produces a decent amount of pressure. You need to turn and move the wand to get good spray coverage but for the money, this is acceptable in my mind. If I would change one thing, it would be good to have a splash guard to reflect any reflective sort that wants to come up and out the toilet hole. Easy to remedy but I'd say it's a design flaw.Anthony
Bought out of a hope for ease of use and functionality. Right on the money for us. Our black tank was showing 2/3 after an empty, so clearly something was on a sensor. Ran it for may 5-7 minutes, and the sensor was now at empty as expected with the black valve open while using. If you have an RV that does not have a black tack flush, this may just help you as it did for us.J.B.T.
18. Sudbury 826-32 Holding Tank Kem – 32 Oz

Product Details:
Specifications:
Theme Type | Cleaning |
Reviews:
Excellent communication, fast shipping! I recommend this site to everyone.Nathalie C.
19. Camco 40226 Tst 32oz Holding Tank

Product Details:
It not only kills odors and aids in the breakdown of solid waste, but the cleaning action of the coconut oil soap helps keep the sides of the lines and tank slick so that no debris collects there. it also lubricates the gasket and seals on the gate valves. 100% biodegradable and safe for the environment.
Specifications:
Item is Shipped at this Packaging Level | N |
Information Effective Date | 2015-12-11 12:00:00 |
Packaging Depth | 2.5 IN |
Packaging Height | 7.63 IN |
Packaging Width | 5.0 IN |
Package Weight | 2.583 |
Package Weight UOM | LB |
Net Packaged Quantity | 6 EA |
Product Form | Liquid |
Scent | Fresh |
Biodegradable | Yes |
Flammable | No |
Package Size | 32 |
Poisonous | Yes |
Application | RV Toilet Treatment |
Units of Measurement | Fluid Ounces |
Reviews:
Helped my sensors start working better and I had almost no smell when dumping. The no smell thing really shocked me because normally when I'd empty the tank it would smell something awful. If anything else I will give this stuff another try to see if it was a fluke or if it really works that good. I have tried several other tank chemicals but this one has worked the best so far. Now if only I could get my grey water tank sensor to work properly.C.D.
This chemical is the only one that I use in my RV to keep things flowing. I call it "Tang". Although it calls for 2 ounces per gallon, I add 4 ounces for greater effectiveness. I usually add 2 gallons to my tank, along with water already in the tank left from my flushing. Good for dry camping, where you don't have access to water for extended periods. Keeps odors down because it is breaking down the solids.E.S.
The product has a good price. It does not work very good for odor control or waste breakdown. I wont buy it again.eddewi.mkagqkcto
20. Camco 41560 Rhino Holding Tank Cleaner Drop-Ins – 6/bag

Product Details:
A powerful enzyme that helps clean your holding tank and remove waste from tank walls in less than 24 hours. simply flush one drop-in per 40 gallons of holding tank capacity down your rv toilet and fill 3/4 of the way with water, then let the drop-in do the rest of the work. regular cleaning of your holding tank helps sensors function efficiently and keep unwanted smells at bay. the easy to use drop-in is pre-measured and safe for septic tanks. for best results, use one drop-in every three months.
Specifications:
Length | 3 in |
Height | 7 in |
Width | 9.7 in |
Weight | 1 lb |
Reviews:
great way to protect your tank eliminates smell greatBarbara A.
Smells good. This requites a minimum length reviewChris