Matt and Brian, I am a bit confused after reading bunch of conversations you had in these threads and wanted to make sure I understood this correctly:
Need to redo plumbing - What is Spa Make-up Valve
Automating my spillway - Seeking Advice
Can you please let me know if I got this right:
With Spa Make-up Valve:
- In this setup in Pool mode, the Spa will always receive some return water (to be controlled by the spa make up valve position).
- Pool Mode: 100 % suction from pool - 80 % return to pool / 20 % return to spa (ratio defined by manual valve setting)
- Spill Over Mode: 100 % suction from pool - 100 % return to spa
- Spa Mode: 100 % suction from spa - 100 % return to spa
Without Spa Make-up Valve:
- Pool Mode: 100 % suction from pool - 100 % return to pool
- Spillover mode: 100 % suction from pool - 100 % return to Spa
- Spa Mode: 100 % suction from spa - 100 % return to spa
- use automation to cycle between these two modes as needed (e.g. 80 % pool mode and 20 % spill over mode)
Based on this it would appear that having the make up valve gives me the option to control how strong the flow is of the spillover (without it I'm stuck with 100%)? If I put an actuator on the spa make up valve, I could even have two settings within pool mode (one with low flow spill over and one without?)
Or am I missing something and the spa make up valve is really not needed?
See below my current plumbing diagram (sorry for the very basic drawing) and please let me know if something looks off
