Star brite 72808 RV Toilet Chemical

STAR BRITE® Instant Fresh Toilet Treatment controls holding tank odors and gassing. It also keeps holding tank walls and drain lines free from debris while lubricants prevent drain valves from sticking. Ideal for all RV, marine, and portable toilets. The formaldehyde-free formula can be pumped out at any dumping station.\nHOLDING TANK SYSTEMS: Black Water: Use 1 fl. Oz. For every 5 gallons of tank capacity. Pour through toilet into holding tank and add 1 gallon of water. Hot weather and long retention times may require additional treatment. Grey Water: Use 1 fl. Oz. For every 10 gallons of tank capacity. Pour through shower or sink drain and add 1 gallon of water.