As I've gotten older (and lived too long on land) I've gotten use to a nice, longesh (by boat standards), hot showers. Now that I think about a live-aboard situation again, I'm wondering about an isolated shower water system that would recirculate a good portion of the shower water for at least a few days prior to being dumped and replenished. Are there any such systems in existence? Has such an idea been discussed anywhere on this forum? Naturally the types of soaps that could be allowed would have to come into question, and of course NO pissing in the shower, etc, etc I just thought we would have the filtering systems etc, capable of doing this job these days?? I did see this: 2012 Invention Awards: A Recirculating Shower | Popular Science ....and this Super-Effficient Water-Saving Shower I guess there are more, just never looked into the subject till just recently. Any body with practical experiences with such ideas?