Walex Elemonate RV & Marine Grey Holding Tank Deodorizer, Lemon Scent, 5 Treatments

These work amazing. We used them in a portable toilet for camping and they controlled smell and turn the substances blue.

oh my goodness, this totally works! no more yucky smell!

have not been able to try the product yet because I had to use up what was the rest of my liquid plumber before I tried using this. this product caught my eye because it is easy to use and quick and it was at the top of the recommendation list when I did research on how to keep my drains from smelling so bad. I did open the package to take a smell and it smells much better than what is coming out of my drains right now. I am pleased with the smell. I am pleased with the price as long as it lasts for a while. that brings me up to my next topic, how long it will last and how often we will need to repeat it. once I have tried it I will post an update!

Great for keeping tank fresh in rv.

It's a great product. It works. I was sad it was not available and the substitution for it was not the same category. You only have “black water” sewage treatments not gray water.

I love these tabs for our grey tank !! The smell disappears and it has a nice, not over powering lemon scent. They dissolve very quickly and are individually wrapped, and don't leave anytime of residue

great for RV sink

Good product but, a bit expensive for what you get

We have had our RV for 4 years, at first the tablets seemed to do a great job. The last 2 years they have not worked AT ALL. I don't know if they have changed how they make it, but I will not buy it again.

They didn't do anything. I followed directions and I even tried 2 per rv sink. My sensors are still dirty. Wasted money.