Piranah or RV Digester
Has anyone used either of these products in their black water tank? Look similar and both you have to order. Someone else recomended Happy Camper.
Forum Discussion
Piranha did absolutely nothing for us, even after dumping it in the black tank with water and driving 2 full days! We have better luck with Campa-chem from Walmart and it's sooo much cheaper! Save the money! Heard good things about Happy Camper, nut have never tried it.
