I am curious whether air in the pump strainer basket that is half full of air is normal when the pump is running at low speed (say 1200 rpm)?
Doesn't seem to happen when the same pump is at a relatively high speed (say 2800+).
Is this definitely a suction-side leak in some form? I have replaced o-rings in the suction side valves a year or so ago and wondering if this is an indication of time to do it again.
Doesn't seem to happen when the same pump is at a relatively high speed (say 2800+).
Is this definitely a suction-side leak in some form? I have replaced o-rings in the suction side valves a year or so ago and wondering if this is an indication of time to do it again.