Air Compressor to Garden Hose for RV Winterization

thingiverse

I designed this system to drain out our RV water lines for the winter season. Previously, I relied on the pink antifreeze solution, but now I simply use this product and hook up to a portable air compressor that holds two gallons of compressed air using standard quick connect fittings. This setup works flawlessly and eliminates the need to purchase the expensive pink antifreeze.