Originally Posted by Brent Swain
3 GPM pressure washer pumps often come on sale for under $300. Anything with ceramic plungers will do, and are far more strongly built than the ones they make for watermakers. Membranes I got a good deal on, but the prices for them have dropped a long way since. I welded up my own membrane housing out of 2/1/2 inch sch 40 stainless pipe, which fit the 540 GPD membranes perfectly. Then it's a a pre filtre from the hardware store, some hydraulic hose and a few other fittings, a V belt and pulleys off the engine.Not much to them.
Certainly not $4800 worth .
"Certainly not $4800 worth " REally? Considering all your expertise and efforts, like welding, which you did to accomplish that device, for someone without all that personal ability, money is the only "other way" to do it.
You're not valuing your skills high enough. :-)