DHD
New Member
Just checked my expansion tank and there was no air pressure, no water coming out of valve either. Pumped it up to 45#. I can see on the pump that air is in when I removed the pump to check again, no air. Went through this several times, same result. The unit is a Watts PET 5.
I spoke with Watts this morning(after I posted) and they said to remove the tank and then fill with air. Tank is filled with water and something about negative pressure in a closed system. The bladder could have drained gradually over time. Someone else suggested the tank can be checked for pressure by closing off incoming water and de-pressurise the tank and then check it while still attached.
What next.
I spoke with Watts this morning(after I posted) and they said to remove the tank and then fill with air. Tank is filled with water and something about negative pressure in a closed system. The bladder could have drained gradually over time. Someone else suggested the tank can be checked for pressure by closing off incoming water and de-pressurise the tank and then check it while still attached.
What next.