Basic Swimming Pool Pump And Filter Diagram

This is a simple diagram of a swimming pool plumbing system. When you turn on the pump, is sucks water from the pool and forces it through the filter (heater, if you have one) and then through the auto chlorinator and finally back to the pool. You have a bunch of valves that allow you to direct flow coming from the pool or returning to the pool. If your needed to increase the amount of suction from the skimmers, you can shut off the drain or vice versa. You can increase the amount of force coming from individual return lines by shutting off the other return lines. On my moms pool we don't have valves for each of the return lines, so we use expansion plugs. They look like a rubber cork with a wing nut, you poke these into the return line wall hole and turn the wing nut until it sticks.