Septic tank and weeping field liquid treatment. Breaks down and liquefies organic solids and paper, prevents build up, digests greases and cleans the entire septic system. Allows the weeping field to recover its full efficiency. Reduces the septic tank pump-out frequency. Eliminates odours. Formaldehyde-free. Economical and ecological. Does not cause damage to environment. Boss products are used in several countries as an environmental alternative of choice in the treatment of waste water from agricultural, municipal, recreational and residential origin. 500 ml.