I want to use a water filter when filling up the tank from city water. South Florida is known for its "tasty-tan" water so I was going to use a taste-odor-sediment type whole house filter and rig it up with hose fittings. However, when not in use said filter will be taking full advantage of the warm humid conditions and growing a set of life forms not usually seen. Then the next time I use the filter all this stuff goes into the tank along with the water. Is anybody using a setup like this? If so do you do anything to prevent unwanted biological activity in the filter and housing? I think chlorine would wreck the activated carbon in the filter. I don't know how the filter element would react to some of the biocides used in watermakers. How about air drying the housing and filter between uses? Thanks for any suggestions. Jim "Prospect"