First time turning on pool heater - tiny micro bubbles from 1 return line

[JC707]

Hi folks. First time turning on the pool heater for our new pool (completed 8/2023).

Just added our salt yesterday and wanted to try out the pool heater. I noticed 1 return jet has tiny micro bubbles coming out while heater is running.

I turned off heater and no more tiny micro bubbles. What would this indicate? We had a small leak at the pad where the PVC pipe from filter connects to the heater, but this was fixed last month and I can't see any more leakage.

Is this possibly a chemical reaction between water Temps? Our water was 69° and I had pool heater set to get it up to 82°.

Thanks!

 

[proavia]

SWG on or off?
Remove the SWG from the equation by turning it off or to 0% and try with the heater on again.

Even with a water temp of 69° and heater set point of 82° or higher, the outlet water temp probably won't be markedly hotter than the input water temp - if the correct water flow is going thru the heater.

 

[JC707]

SWG on or off?
Remove the SWG from the equation by turning it off or to 0% and try with the heater on again.

Even with a water temp of 69° and heater set point of 82° or higher, the outlet water temp probably won't be markedly hotter than the input water temp - if the correct water flow is going thru the heater.

SWG is still off at the moment (0%). Plan to turn it on here in the next hour or so.

Dug deeper in app and pool heater pump speed is 2250 if that makes a difference.