This is absolutely the greatest RV tank treatment I have ever used in my 5+ years of RVing. It is amazing stuff and controls odor like I’ve never smelled before. I was absolutely amazed at the list of ingredients that will help to clean my holding tanks and you will be too. But, you know what? This stuff actually works! And what’s more, based on the amount you need to use, it’s cheaper than all the other stuff that I have used in the past. Works in your gray tank as well, and if you know anything about gray tanks they can stink as bad or even more than black tanks. So, do yourself a favor and try this product. I’m glad I did and you will be glad that you did too.
BigJerm via Homedepot.com Cincinnati, OH February 22, 2017