Walex Commando RV & Marine Black Holding Tank Sensor Cleaner - Ocean Mist Fragrance - 4 Treatments

I reside full time in a small RV; step on toilet flush peddle — water runs and opens toilet hole flushing to black tank, drop one pod in toilet hole followed by hot water (I boil water in tea kettle), I “clean” monthly, instructions says less often. let pod work its magic for several hours or overnight to break up solids. Then, do black tank drain to sewer/septic… Tada!

I was skeptical when I ordered this. I left it in a full tank for two days. After I drained it I checked the gauge and the sensor worked for the first time in two years!

I don't use anything else. This really works!

The worst part about camping are the holding tanks! Commando is the best tank additive! We use it regularly. It makes camping smell so much better.

Good product

Our trailer sensors in the black tank have not been accurate. Followed directions and Bingo. We got a reading of 0 when the tank was empty!

For the time being my husband and I are living in our RV. We had a bad plumbing issue with the toilet and black water tank. So we called around and two different plumbers suggested that we try Commando. We were skeptical at first but we tried it anyway. WOW!!! Our plumbing problem disappeared and now once per week we empty the black water tank and just drop two of the Commando pods into our toilet and flush. All of plumbing issues are gone.

I didn't receive this item

Did not work as well as other brands. Had to use 2 to keep odors down. Not cost effective.

I ran 3-4 pouches of this through my tank, letting it sit in the tank for many days longer than recommended, but it just didn't work.