Being a new pool owner I've been trying to figure out just exactly how all the pool plumbing works and what's connected to what and all that. I've been having a hard time figuring out just exactly what the function of the main drain in the bottom of the pool is really for. Since this house had this pool when we bought it last year, and it was an estate sale where the owner had passed away, and it was built most likely in the late 60s, we have no information on how it's all run. So in looking for diagrams I came across to examples that are different in the way the main drain connects. Is there any way to determine which way ours is done?
There's this where it's run to the skimmer:
And this where it's run straight to the pump:
I would assume it would probably be helpful to know how it's connected if you wanted to like drain the pool or something like that, right? Also, we have just a manual vacuum which plugs into the back of the two holes at the bottom of the skimmer...does the main drain have any affect on vacuuming based on how it's plumbed?
Thank goodness for this site! I've learned so much already and really want to get a good understanding of how our pool works!