Main Drains

Main Drains – A pools main drain is not actually a drain; that is, it is not used to drain the pool. Instead, it is an outlet, housing a pipe that runs to the pump, which sucks water through a skimmer, then through a filter, then through a heater (if you have one), and then back to the pool via multiple inlets. Most pools have two main drains, but a small pool may have only one. The drains are positioned at the pool’s deepest point.