Expert Spa and pool set up help!


Aug 16, 2020
Memphis, TN
We are under construction for a pool and spa. The spa is at pool water level and does not have a spillover. We will have a heater on the spa and a heat pump on the pool. We want to be able to run them both at the same time at different temperatures. Is this possible to achieve with only one sanitation system and one filter? If so, please help me understand how the water stays separate.


Mod Squad
TFP Expert
Bronze Supporter
May 3, 2014
Laughlin, NV
It will not be possible. You would need two isolated circulation systems for that to be achievable. Odd set up to have two heaters.


Gold Supporter
TFP Guide
Jul 21, 2013
Northern NJ
Pool Size
Salt Water Generator
SWG Type
Pentair Intellichlor IC-60
Dual gas heater and heat pumps are supported by some automation systems.

Why is heating the pool necessary when heating the spa?

Usually you heat the pool to whatever normal temperature you want. Then switch spa on and heat when you plan on using it. The pool stays pretty much at it’s temperature when you switch water flow and heater to the spa.


Well-known member
Jun 10, 2019
Puerto Rico
Why dont you just have one heater and some 3 way valves to control where the heater takes water and feeds it? That way you can take water from the SPA drain and feed it to the SPA returns.