Was the pump on or off when the explosion happened?
Does the SWG stay powered when the pump is off?
Can you list all of your equipment?
We always stress that it's important to have redundant safety interlocks for SWGs.
The flow switch is one safety interlock.
The second safety interlock should remove power from the SWG whenever the pump is not pumping.
This can be accomplished by automation or a timer that turns the SWG off during the time that the pump is scheduled to be off.
Anybody ever see pvc explode like this? Nothing blocked. All pop ups clear. Someone said an air pocket. It appears to have a bit of air bubbles in the sight cover of pump. Air bubbles do come out of some pop ups. Pump was on high speed. 30 psi at filter. It was after salt generator. Salt...