After two years of the corrosive, stinky, awful Blue Stuff That Shall Remain Nameless (I'm looking at you, West Marine) we were ready for a change-- who wants a stateroom that smells alternately like a hospital and... well, you know. UNIQUE IS AMAZING! We've used it for a grand total of two weeks between pump outs and there is NO SMELL in the head, near the tank, ANYWHERE. I let it sit in the head before flushing it through the first time and even the macerator seems to be working more smoothly. I can't recommend this product enough-- stop stinking up your life, stop putting harmful chemicals into your boat/home/environment, and START USING UNIQUE! :)
I can't see inside my tank and have no clue if it is working or not. When I did have questions regarding usage, customer service was fast and pleasant.
I’ve used everything and this is the only one that keeps the odors down and my sensors working PERFECTLY!
Marine Digest-It works great no more smell and it appears that is is breaking up the solids in the tank for a cleaner tank.