Jandy Spa Spill over set up

aaron07

Member
Jun 27, 2023
19
Houston Texas
Pool Size
25000
Surface
Plaster
Chlorine
Liquid Chlorine
Due to PH rise i need to adjust my spa spill over. i did search this topic but i just wanted to confirm i was understanding correctly. I currently run my pool in "pool mode" and as you can see in this position the return valve allows flow to both the spa and the pool. This creates the constant spill over. I would like to change the set up where in one mode it does not return any water to the spa and then in another mode it is set up like my current setting, return water to both pool and spa. I read about using Aux3 to make this happen. When i turned Aux3 on nothing moved. So i think i need to turn on the dips Switch #3. But in my picture below i have 2 number 3's. Which one do i use? Also do i need to adjust the valve and actuator to make this work as described above?
 

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I would like to change the set up where in one mode it does not return any water to the spa and then in another mode it is set up like my current setting, return water to both pool and spa.
That goal is not possible. In SPA mode, the pool must be completely shut off. In POOL mode, you can either completely shut off the SPA, or you can mix returns like you have now.

Your desire is to have the SPA off in POOL mode, and in SPILLOVER have a mixed return, but that will preclude you from having the POOL completely off when in SPA mode.

In SPILLOVER, the suction valve is set as it is in POOL mode, and the return valve is set as it is in SPA mode.

So in SPILLOVER, your suction will be all from the Pool, and the return will be all to the Spa.
 
That goal is not possible. In SPA mode, the pool must be completely shut off. In POOL mode, you can either completely shut off the SPA, or you can mix returns like you have now.

Your desire is to have the SPA off in POOL mode, and in SPILLOVER have a mixed return, but that will preclude you from having the POOL completely off when in SPA mode.

In SPILLOVER, the suction valve is set as it is in POOL mode, and the return valve is set as it is in SPA mode.

So in SPILLOVER, your suction will be all from the Pool, and the return will be all to the Spa.
Ah ok. Then i may not change it from the way it is and just deal with PH and TA adjustments. As we like to have the waterfall running when we are home (my wife likes the sound). I was just hoping to not have the spillover going while we are at work or not home and cut down on increasing PH. I really don't want to have all the flow going to the spa while in SPILLOVER because while we are home we want the water fall going.
 
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