Join Date: Feb 2000
Location: Green Cove Springs, FL
Thanked 1 Time in 1 Post
Rep Power: 18
It is for holding tanks and an enzyme that likes shi... poop etc. Spray it rather on your hoses and in the bilge. You have to put it in a spray bottle to do it. KO stands for kills odors. I think it is made by Raratan. and available at most marine stores.
It worked for me