The below diagram is from http://www.poolcenter.com/plumbingSchematics and is described as follows:
Basic Pool & Spa Combination Plumbing Diagram
- 4 Jandy 3 way valves
- 1 Jandy 2 way valve
- 1 Jandy Check valve
- 2 Jandy Valve Actuators
Common pool plumbing layout for the pool/ spa combo design with shared pool & spa heater and controller.
My question is:
What is the purpose of the horizontal connection from the
Spa Return to the
Pool Return via the
3 way valve?
There is already a route via the
Spa Make-up and
Check Valve to the return.
If you wanted to configure the system to pump to "spa only"... you'd want everything going through the
Check Valve, right?
You wouldn't want leakage to the
Pool Return, and you wouldn't want water going past the