I am really tired of lugging cases of water aboard and dealing with the empties, not to mention the half drunk ones left behind. We filter the water coming aboard and filter U/V on the way to the taps already. I want to make sure we have the right set up and add a system at the crew sink for extra filtration for water bottles. We filter at the dock with 2 filters, what is recommended here? On board we filter with 2 more filters and a U/V, what is recommended for these filters? Right now we have a tap mounted Brita type filter that we are using for coffee etc., opinions on these? I am thinking of adding a 3 stage reverse osmosis home style here, is it worth it? We are an older boat, 10+ years, and we are thinking of shocking the whole water system to help kill anything in the tank or lines, any input or process recommendations for this? Thanks for the input.