Swimming Pool Drains & Inlets

A swimming pool drain, including an anti-vortex cover over a white background.

In This Article: Safe Pool Drains Pressure-Relief Valve Pool Inlets A pool’s so-called 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 […]