TANK SAUCE is a must have for all RV and Travel Trailers. Our Unique formula is Enzyme based and contains no bacteria. Designed specifically to break down sediment in the black and gray water tanks without damaging the seals and plumbing. A fresh citrus fragrance helps eliminate odors while preventing bacteria growth and build up. Just pour into the sinks and toilets and let the TANK SAUCE do the dirty work. PREMIUM FEATURES Our Enzymatic formula does 10+ critical tank functions in 1 product Easy to Use: Pour down the drains into your tanks Digests toilet paper and prevents clogs Helps eliminate odors and protect internal plumbing seals Compliant with ALL state regulations including California Unique Formula is Formaldehyde and Bronopol FREE View compliance documents »