Re: Suggestions for Watermaker
Check out wolfwatermakers.com .Wolf used his pressure washer pump in the South Pacific and its been running since 1998, no problems. He said they are far better built than the ones made for watermakers. Compare the wall thickness of sch 40 2 1/2 inch stainless pipe (.203 inches) with the wall thickness of most commercially made housings. They are flimsy by comparison. Home built watermakers are far more reliable than commercially made ones, as is the case with most home built gear.
The mere 24 inches of weld needed to build your own housing shouldn't cost much, if you cut out your own parts.
Brent Swain, Boat designer, Builder, and author of "Origami Metal Boatbuilding"