I chose the moderate capacity SureFlo because it's another way to moderate water use. When someone gets into the shower or leaves the fawcet on full while washing dishes for fifteen minutes, it's better not to be spitting 4 gallons a minute down the drain ;^)))).

The Shurflo really is pretty good (I think is rated at 3 gallons/minute), I've toyed with replacing it for a bit more 'umphh' -- but the sucker just won't die.

- http://www.easternmarineoutlet.com/Shurflo-Marine-Fresh-Water-Pumps/