HAPPY CAMPERS Organic RV Holding Tank Treatment - 18 Treatments

I live in an American RV in the UK. I previously used different options for the black tank. There was always a lingering smell, especially when it got hot in the summer. I was recommended this product by another RV'r, and I must admit it is very good. There is zero smell, and being organic, I can use it in the RV park, which doesn't allow chemicals. Very happy to recommend this. Yes it is expensive but it is shipped from the USA

I had heard about 'Happy Campers' when I was visiting some friends in Florida who had their own RV (apparently this stuff is legendary round US Campsites). I myself have a boat with a black waste holding tank, which has a tendency to emit some nasty smells whenever flushing or otherwise agitating the tank.The instructions are precise and following them, you wont go wrong (only niggle is its all in US Gallons, but this is an imported thing), just put one scoop in a toilet filled with water, and flush. My tank is around 250L, so around two large scoops with two full bowls of water should be enough. After using just one treatment, I've already noticed a huge difference - so far absolutely no odours! I'm shocked!! So much better than the Blue stuff that people use. As the package says, it doesn't mask odour, it eliminates odour.We are due a pump-out of the tank in a month, so will update so far as how it dissolves toilet paper and other material.

No smells, easy use, easy store, cheap per shot in our MoHo grey water tank.