Hi
A few months ago I mentioned on here I was setting up a micro off grid set up for a woman living in a modified shipping container, 450W of solar 430Ah of batteries and a 1500W Pure sine wave inverter. That set up is working fine and does everything she has asked of it.
She came to me and asked if I knew of a water pump that would lift water from her stream 40ft up the enbankment to her storage tanks. Two companies had been out and quoted hundreds of GBP to do it.
I measured the fall on the stream laid a 1 1/2 in pipe up the stream bed and looked at what came out of the end, and judged it would be enough for a RAM pump. put one together from 3/4 plumbing fittings and a couple of swinging back check valves. coupled the feed from the stream to the input and a standard garden hose to the output and fed it up the bank and lay it on the ground after about ten minutes water was coming from the end, I cut the pipe to length and fed it into a 210ltr tank, acouple of minutes later the water was going into the tank at the rate of 225ml a minute.
Starting the pump until there was enough back pressure to hold the outlet valve closed was a bit fiddlybut once everything settled down it sat on the bank clicking away. Appart from when a branch fell of a tree and hit the pump and it required restarting it has worked without fail.
Total cost £65
I would like to be there when the rep from the company doing petrol and electric pumps calls for his follow up visit to see what she has decided.
Brian