I have a GE "Smartwater" system under the galley sink, tees off of the cold water line through the filters(2) then up through a small spout. It works fine, no odd tastes yet, but the flow rate is low. I do check the chlorine level in the tank water using test strips I ordered online. Our water tank is 100 gal capacity so when cruising we go through it fairly fast. I am always surprised that so far even when sitting for long periods unused the water hasn't developed off odors or tastes. When filling I let the water run a while through a clean hose, then taste it, if it is ok I add a hose end filter and fill the tank, some areas have "rust or sulfur tasting" water I don't need a tank full of that!
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