Non-Toxic Swimming Pool Anti-Freeze - 1 Gallon;

Non-toxic, propylene glycol pool anti-freeze protects your pool plumbing from freeze damage during the winter months. It is safe for all types of plumbing and glycol antifreeze can be released into the pool without any hazard to the swimmers in the spring. Measure the approximate run of pipe from your filtration system to your pool to ensure enough anti-freeze is used to adequately protect your plumbing and simply pour into plumbing lines, but do not pour into or through your pump or filtration system. One gallon of Non-Toxic Pool Anti-Freeze treats 10 feet of 1.5 inch pool plumbing.