We recently purchased a home with a pool from a seller who had already relocated to another state. We don't have much info about the pool, other than what we've been told by a pool man who maintained the pool for a few weeks after the seller had already moved away. We're just having to learn as we go.
The other day I noticed this part in the side wall of the shallow end. It's at about the same height on the wall as the return jets. I'm just wondering what this is, and what it's for.