Walex Porta-Pak Black Holding Tank Deodorizer & Portion Control System Drop-Ins - Rapid Breakdown of Waste & Paper, Odor Prevention, Cleans Tank & Sensors - Lavender Breeze, 10-Pack

This is the one I also order for my black tank's regular maintenance. I like that I simply have to drop it in the toilet water to dissolve and then flush it down into the tank. During the heat of the summer I usually end up adding a couple before its time to dump the tank. It helps keep the tank odors down and helps dissolve everything to keep clogs from occurring. I am full time stationary and have been using this for the last few years. It's economical and it works.

LOVE THESE! I not only use it in my camper, but I use it for a portable pottie I have in my husband's big truck!It leaves a wonderful smell and it breaks the toilet paper in liquid, as well as the waste !

Worked great in our camper van to break down waste. We used it in a cassette toilet. We had no orders and it was easy to dump our toilet.

Works fine , strong smell can be overpowering if you don't have bad odor but great if you do.

Will buy again

Works great for smells

I go through a bag of these and the commando black tank cleaner in 4 -6 months. We are full time 5th wheelers right now. We have an extremely large black tank and just let it fill.The color is pleasing. The freshness is amazing. Love the smell! They are so simple to use… just plop in the toilet (we let it dissolve) and flush.I add one of these and one commando every month (at separate times) until the bags are empty … then wait another month and empty.Love these things - keeps any unwanted smell at bay. We don’t throw toilet paper in our tank (anymore) due to many issues with our past campers.If you’re looking to clean your sensors , I can’t speak to that. We’ve had no luck in that regard with any product. Besides , I don’t believe these are for that at all.Anyways, we love all wale x products!Highly recommend to keep the tank smelling fresh!⭐️⭐️⭐️⭐️⭐️

Has a great smell