Re: [RE-wrenches] Pump control

2011-12-14 Thread Allan Sindelar
Mac, No, I haven't done it, so take this with a grain of salt... Here's a simple mechanical approach: have you considered a dual-action float switch on the PV input to the CU200? Check out SJE Rhombus at http://www.sjerhombus.com/products/product_info.asp?id=33

Re: [RE-wrenches] Pump control

2011-12-14 Thread William Miller
Mac: We've dealt with this. The best solution is altitude. If there is any terrain on which you could put the tank, you save a lot of complexity. Alternatively, can the well pump deliver into a pressure tank, pre-pressurizing the water? This would also save a bunch of extra parts. Willia

[RE-wrenches] Pump control

2011-12-14 Thread mac Lewis
Wrenches, wrenchers and wrenchees, I've got a pump control question. Working on a stand-alone pumping station in Haiti. I am planning on using a Grundfos SQflex pumping system with a Cu 200 and a float switch. Also needed on site, is a small pressure pump to force water through a purification s