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solar home made pool heater
It's been a very long time since I was active on this site. I am now retired in Palm Beach, and lovin' this life. My question is: I want to use 100'-200' of 3/4" black plastic coils as a heat exchanger. My plan is to tap into the filtered water 1 1/2" PVC using a Y connection, thru the coils and back into another Y, and into the pool. I'll be installing a throttling valve between the Y's and temp gauges, air eliminators, and purge valve set ups. My pool is about 10,000 gallons, currently pumping at about 28 GPM, 25 PSI static pressure at the single 1" orifice. I'm trying to figure out the pressure loss thru the HX tube, and what flow rate would be best for this application. There is also a control valve on the inlet of the pump if I need to slow down the flow, but I think I can use the HX valves for flow control purposes. Any takers???