We love our Katadyn 80 watermaker and plan on taking care of the unit. When in port for more than 3 days I run a gallon of product water through the unit with the hose that I would use to pickle it for extended storage. It seems that using a gallon of fresh water through the unit would make sense after running it in general even if it only sat just two days. Kinda like flushing the outboard. Am I looking for busy work or does this make sense? Tom Evans SV Tappan Zee. San Diego