Additional info, it took 2&1/2 days from 930 til dark, 60 feet of PVC, 13 street elbows, 28 normal 90s, and all the valves.
I like the simplicity to run the spa from the everyday operation. Only need to turn two valves.
Check it out.
I'm replumbing, and gonna start next week. I've attached before shots.
Current problems include:
chlorinator runs through all returns including spa, so when heated and not chlorine turned down or off spa water gets super chlorinated,
Booster pump breaks off before spa, so when spa running booster valve must be closed else spa drains.
Jandy 3 way, 2 ways, and checks
Spa vs. all other suctions with 3 way
Dual skimmers with 3 way
Wall drain with 2way
Close unions on pump and multiport valve
Heater diverted with 3-way and check
3-way to separate spa return from others
Booster pump pulled from returns after spa diverter
Then chlorinator, then 3 way to wall returns
Using the mitre saw for cuts, red hot PVC cement for glue (Oatey or Christy's)
Plenty of Teflon tape and magic lube II
Other tips are welcomed.