I see most pictures of shut off valves of AG pools, right under the skimmer with a union. That's not too bad, but why have the shut off valve there instead of near the pump? If you shut the valve off to work on or remove the pump, you will get all the water coming out from the piping from the valves down to the pump.
If you placed the valve at the pump, you will not get much water coming out when the pump is disconnected.
Should there be two valves? One at the skimmer and one at the pump? That would make more sense, right?
Then one after the pump/filter... etc...
Is there a drawing of the proper locations of this stuff, or do you just use common sense. ha! I'd ather see a drawing, because I would over-do-it if left on my own.