Happy Campers RV Toilet Treatment - 130 Concentrated Doses Value Pack - Septic & RV Plumbing Safe - Maintains Waste Flow - Prevents Odor & Residue Layers for Black and Gray Camper Holding Tanks

This stuff is awesome. I've used probably 6-8 different black tank products and always have "the smell". When I use this product in the heat of summer the tank smell does not come into the RV. I'm really impressed with this and it has no negative impact on my septic tank. I've been using it for 6+ months and have nothing negative to say about this product.

UPDATE:I've been using this stuff now for more than 18 months (about six months on the road) and it's working still great. My sensors never did recover fully (see mention of sensors below), but we experience no odor whatsoever.I think I do use more than the recommended dosage. I use about 1/3 cup as an initial dose if we will be in one location for a week or more. I also add another modest dose (about 1/4 cup) at the end of a week if we will not be dumping for another few days. We've now gone as long as 12 days on the two doses.ORIGINAL POST:This stuff works. I've been using it for three months, 90% dry camping and boondocking with up to 11 days between trips to a dump station. This has been a fairly severe test. Also, my tank level lights which have been useless for a couple of years (always reading 2/3 or full) are starting to come back to life.Recently I had to replace my RV toilet while the black tank was 80% full with 8 days of sewage in it. While doing the change I also had to fish an object (long story) out of the 3.5 inch; pipe from the toilet down to the tank (using a flexible extension camera from Harbor Freight and a home made noose). There are two 45's in this pipe! The object was stuck at the bottom and causing a frequent clog. It took more than two hours to successfully get ahold of it and bring it up. I (actually, we) did this after the old toilet was removed and before installing the new one. I did add a second dose of this digester stuff a day before this undertaking and I'm sure that helped. There was virtually no oder during this operation. DW was assisting and never complained of an oder (she would have had there been one!).I probably use a bit more of the treatment than necessary, but at this price that's acceptable. It's looking like I'll get at least 5 years from the tub (4 months per year in the RV). It's far cheaper than the pellet things which run $1 or more each (and I often used two at a time trying to make them effective). I'm sold on this product ... no more oder complaints from the DW. Enough said.

We are RVers for over 15 years and always had an issue with our black tanks. Either clogged tanks due to the use of household toilet papers, sensor reading issues, and especially smell coming out of the sewer system. We have tried so many product made by small and big firms, but couldn’t find a product that actually works. Most products only mask the odor with some strong perfumed odor, but the sensor and clogging issue was never solved. Until I came across Happy Campers RV holding tank treatment. Well, it wasn’t simple to get it, since we live in California, and this product is not available here. We managed to get it, and boy how happy we are… the product truly lives to it’s name. We have been using this product for a few weeks and the issues that we were experiencing for 15 years are ALL gone. There are no more clogged drains (and we are still using regular household toilet papers). The sensors, which we thought are broken, have been showing the true reading of the tank levels again, and the smell, ohh the smell, there is NO smell. Nothing. Zero. Nada. Even in Southern California where temperatures exceed 110 degrees, there is no odor coming out. This product does miracles. I am not sure what it contains and how it does it, but it works, and works great.

A friend of mine gave me some of this product to use in my RV tanks. It keeps the tanks clean and keeps the rotten egg smell out of the drains. It's worth the few extra dollars.

Yeah, I said what I meant. We've tried a handful of options for black and gray tank treatments, and we travel full time in a 38' travel trailer. Two toilets, shower, 3 indoor sinks. We use a scoop in each toilet after dumping, and every 6 months or so put a scoop into the shower, 2 bathroom sinks, and kitchen sink. There's no smell, no residue, no problems. We even keep one bin of Happy Campers in each bathroom. We can't always have it shipped to where we are, it seems like many locations in California wouldn't allow it to be shipped to us, so we stock up in Oregon and Arizona!

Happy Camper is by far the best holding tank enzyme in the market. The product itself is 5 star. It has no fake perfume smell because there are no smell problem you are trying to mask. Many people complain their tank sensors don’t work which is because their tank isn’t truly clean. We are going on two years and our tank sensors still work. Notice it says holding tank, not black tank. That is because a scoop in your black and gray make all the difference. People forget the gray tank does get icky. Just because soap goes down gray tank doesn’t mean it is clean.The packaging of the large container on the other hand made me knock it down to a 4 star. This product should be in a truly sealed container like a screw top. I bought a small container and then refill regularly. The large container just can’t hold out moisture and I have had chunks I need to break up before scooping which is very irritating but not a deal breaker.

I have been using Happy Camper in our black tack for over a year now. Never had a stink problem since! Easy to use!

Works great to fight sewer odor when camping.

Will never use any other tank deodorizer product after using Happy Camper! Breaks down all solid wastes and toilet paper and takes all the smells and odours away with it!

Good value. The 130 treatment size lasts a long time. I only use Happy Campers.

Some many great reviews here, on facebook and other forums and they were right!!! Great product, will go along way.

I have been using Happy Camper for many years. I even use it in my sump. Never any odour from toilet or when dumping. Keeps everything nice and fresh. In fact my entire family and friends are using Happy Camper. BTW Happy Camper is a family owned company who pride themselves in making a top drawer product. And no, I am not sponsored.

The various youtubes extolling the virtues of this stuff are correct. It does it's job and is scentless. No more yucky perfumes or complicated procedures.