For the past month the first return jet for both the pool and spa have tiny bubbles coming from them when the pump runs on its std schedule at 40%. The bubbles are very fine and come out at a moderate rate.
The pool has 2 jets on a shared 1.5” flex feed.
The spa has 4 “jacuzzi” jets sharing 1.5” flex feed.
The pad is all 2” rigid and the Hayward 3-way valve on return side is controlled by Hayward actuator.
No leaks on the equipment pad. Pump chamber is full and air free. The filter has been bled of all air.
When the pump is run on high, the bubbles appear to stop.
How can I troubleshoot this before digging out by jets to inspect?
The pool has 2 jets on a shared 1.5” flex feed.
The spa has 4 “jacuzzi” jets sharing 1.5” flex feed.
The pad is all 2” rigid and the Hayward 3-way valve on return side is controlled by Hayward actuator.
No leaks on the equipment pad. Pump chamber is full and air free. The filter has been bled of all air.
When the pump is run on high, the bubbles appear to stop.
How can I troubleshoot this before digging out by jets to inspect?