In chilly climates, put together for winter by getting rid of the shutoff Y-splitter, backflow preventer, controller, filter and tension regulator and bringing them inside. Remove close plugs and drain or blow the water out on the system. Change the caps and plug the faucet end with the tubing http://pond78872.tribunablog.com/the-greatest-guide-to-website-about-water-systems-9452902