Trying to identify these valves on pool.

[NoNameGolfer]

I need someone to help me identify the three valves and the pipe on the other side of the closed Jandy actuator valve in a picture. I've tested the three pipes valves and it seems that the first pipe and valve to the left are connected to the spa. When the valve is fully open, it adds water to the spa and increases the spill over into the pool. The second pipe (middle pipe) and valve appear to be returning to the pool. When closed, it restricts the water flowing into the deep end from a jet on the side of the pool. I can't determine the purpose of the third pipe as it doesn't seem to do anything whether the valve is closed or open. Additionally, the unlabeled pipe on the other side of the Jandy actuator valve also confuses me, since the Jandy actuator valve doesn't appear to move even when I flip the switch on the back of the actuator or when I turn on the spa with the remote. I believe it may be broke. So I can't test as to what that pipe even does. I would greatly appreciate any help with this. Thanks

 

[NoNameGolfer]

I believe that the third pipe and valve that I mentioned might be linked to the in-floor pop-up cleaning system. When I shut it off, the PSI gauge on the Paramount water valve drops to zero. Additionally, could the unmarked pipe on the opposite side of the Jandy actuator be meant for the spa jets? Any assistance with this would be greatly appreciated.

 

[Rancho Cost-a-Lotta]

Additionally, could the unmarked pipe on the opposite side of the Jandy actuator be meant for the spa jets?

Probably, as it does have a check valve to prevent higher water from draining back to the pad. It may be a makeup valve to allow a bit of overflow for the spillover.