ZEP SEPTI-PAK SERIES ZSTP6 SEPTIC SYSTEM TREATMENT, SOLID, BROWN, MILD, 12 OZ POUCH

Septi-Pak® concentrated septic treatment is a biodegradable formula that degrades and digests waste. It replenishes the essential bacteria that break down fats, oils, grease and organic waste. The easy-to-use concentrated formula is safe for pipes. Use one pre-measured bag once every two months for a 500 gal tank.