Plumbing Setup Deciphering Help

[afton]

Hi! New to the forum and new to owning a pool. We just bought a house with an in-ground gunite pool. It was built in 2008/9, so it's only a few years old. I am trying to understand and figure out the plumbing. My main question is where exactly is the return and is this setup using more than one? It's currently winterized and only half full, so I can't run the pump to find out, but I figure most of you will be able to instantly recognize the set-up.

Below is a picture I found of the pool when it was first built, showing all of the plumbing coming in/out of the pool, and below it a picture of the pump/filtration/sanitation setup. I labeled it according to the labels on the valves.

My questions: 1. Is the port on the side for attaching the cleaning unit only, or is it a return as well? 2. Which of the drains on the bottom are actually drains, and which, if any, are returns?

Thank you!

[afton]

Anyone? Is there a way to tell which are returns without running the pump?

And I found another picture (the pool is currently green so can't see the bottom) that shows what appears to be another drain in the deep end. You can barely make it out in the first picture, just left of the main drain.

Thx

[LegsOnEarth]

The two ports on the bottom are probably floor returns, judging by your plumbing nad the fact that you only have a wall return for your pool sweep. The pool sweep return is both a port for connecting your sweep and a return, but judgin from the way your plumbing was done, it would seem that is will on be acting as a return when the booster pump is engaged (common). You should have 2 drains (technically one split drain) in the deep end, which it sounds like you have.

It's a very simple set up over all.

[afton]

Thank you for the response. I appreciate it.