So after answering a number of leak questions, I now have my own! More academic than anything, but....
At low speed (1100 rpm, or even 1350 rpm) I get expected return out of all 3 jets. SWCG flow switch works, and I get CL. Heater has been totally bypassed (hard plumbed!) while I wait for a new to come. When I open the filter air bleed to see if there is any air - I get suction into the filter, instead of water out! I do get a moderate pump bubble after 20 hours running at that low speed, so maybe a pretty small air leak I haven't yet found. I would think with the flow I have, it would be good enough to overcome the head height of the filter? Bumping up to 1650 (my next available rpm) and all is as would be expected.
New heater comes next week, so I will likely have to run my minimum higher, so this will all be moot. But am intrigued as to what may be going on.
Per an earlier thread, have pulled and inspected the air valve, along with replacing the two Pentair diverters that were causing my prior big suction air leaks. So it seems fixed there. No leak down at all after several hours with the system off.
Thoughts?
At low speed (1100 rpm, or even 1350 rpm) I get expected return out of all 3 jets. SWCG flow switch works, and I get CL. Heater has been totally bypassed (hard plumbed!) while I wait for a new to come. When I open the filter air bleed to see if there is any air - I get suction into the filter, instead of water out! I do get a moderate pump bubble after 20 hours running at that low speed, so maybe a pretty small air leak I haven't yet found. I would think with the flow I have, it would be good enough to overcome the head height of the filter? Bumping up to 1650 (my next available rpm) and all is as would be expected.
New heater comes next week, so I will likely have to run my minimum higher, so this will all be moot. But am intrigued as to what may be going on.
Per an earlier thread, have pulled and inspected the air valve, along with replacing the two Pentair diverters that were causing my prior big suction air leaks. So it seems fixed there. No leak down at all after several hours with the system off.
Thoughts?
