I have jimmied up a pool heater from an idea on YouTube, but just expanded it. I have a water line of 2" PVC, piped down to 1/2" copper, so it can run through a coil, then increased back to 2" PVC, and re-connected with the original pool hose of 2".
Will this keep the constant pressure that it starts with, or will I lose water pressure. It seems to have lost pressure, trying to get back into the 2" inch hose. Any suggestions?