Nothing else would clear my motorhome black tank sensor but an intense dose of this product did the job. Less product can be used on a routine basis. So its easy to use, smells. Fine and doesn't cost much. Also, this is a biotic product rather that a caustic cleaner sterilizer. The longer on leaves it in the tank, the more it will process and thereby unclog or clean your tank/sensors. Read the directions!
Rating:
[5 of 5 Stars!]