What are these pipes for?

[bosko]

hi I have a in ground pool and spa. The spa over flows into the pool. The pool has a single skimmer box.

I’m trying to figure out what the 3 pipes on the right that tee together are for. Can anyone tell me?

Also how can I figure out where my pool drains are connected? I have a pipe that I know is from the skimmer and there is a pipe that goes to a port for a cleaner in the pool.
I Appreciate any comments!

 

[PoolGate]

Hard to say it looks like the pipe is cut on the right side in the pic, is it?

Drains would be coming into your pump from one of those pipes connected to the valve. Is the cleaner a pressure or suction style?

Sometimes the pool drains are connected to the bottom of the skimmer. Does your skimmer have 2 holes in it? Post pics!

 

[Rocket J Squirrel]

The black & gray thing looks like a spa blower, so I'd guess those are 4 air pipes for your spa jets. Is the right side open or plugged?

 

[bosko]

The pipe is open on both sides so all 3 pipes are open to the air. There are 2 holes in the skimmer. The cleaner is a suction style. See pics.

 

[bosko]

The weir/flapper to this skimmer is starting to bind. It caused my pump to suck dry, took me a little work to figure that out. Do the sell replacement flappers for these? Not sure what brand or model it is.
See pics

 

[bosko]

Pool pic