Below are new plumbing diagrams. You have a very complex plumbing system and your videos were very helpful. I welcome anyone looking at this to audit what I marked up. I think I have the pipe flow figured out and this gives us a layout to discuss how Jess should startup her pool and operate it.
Here is the legend:
PS1 - Pool Suction 1
PS2 - Pool Suction 2
PS3 - Pool Suction 3
PR1 - Pool Return 1
PR2 - Pool Return 2 (which may be a return to the spa to circulate water over the spillover)
SR - Spa Return
SS - Spa Suction
Waste - Waste line from the MPV used to drain water when MPV set to BACKWASH, RINSE, or WASTE
The
Hayward manual for the Variflo MPV on page 4 shows you what each of the MPV handle positions does.
Some observations:
- You have 3 suction lines into the pool pump. One is likely for the skimmers, one is for the main drain, which is which you will need to figure out once you get the pool running. From the fact that the ball valve on PS1 is open my guess is that is the skimmers.
- PS2 valve handle is broken off and we don;t know the position of the valve. It could be to the main drain.
- PS3 valve is CLOSED. It could be any number of things - a suction vacuum line; or another skimmer line; or even connected to the spa.
- I am stumped why there is a valve connecting PS2 to PR1. A suction line to a return. If anyone has ideas have at it.
- There are two returns coming out of the filter - PR1 and PR2. There is a knife valve that looks like it controls if PR2 is open. PR2 may run to the SPA and the knife valve controls the spa spillover running or not when the pool pump is running.
- A waste line comes out the back of the filter. You should follow it and figure out where it dumps the water.
- Then there is a separate spa pump, probably for spa jets with suction line SS and return line SR.
- As others have noted there are some flexible couplings that should be replaced by rigid PVC. Although I suspect they are there for a reason and it may not be easy to align all the hard pipe.
- Absorb what is here and then we can discuss the process for starting the pumps. The question is going to be if anything is leaking once the pump is running.
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