I'm still having trouble with my pump (an older Pentair Whisperflo single speed). I made a video which should show everything:
Symptoms: low pressure in the filter (under 10 when it used to be 15-20). The filter and skimmer and pump basket have already been cleaned. Very low suction in the skimmer and with the pool vacuum. Water bubbles in the return lines. I've tried adjusting the valve going into the pump to 100% skimmer, 100% side port vacuum, or 50-50. Doesn't make a difference. I regularly release the air valve, and it sometimes lets out some air, but also lets out water at a low pressure (back in the day, water would shoot out vigorously; now it just peters out). The pool itself doesn't seem to be cleaned well -- I see debris both at the bottom and on the surface that aren't getting cleaned.
The filter was cleaned roughly a month ago and we haven't been through an unusually dirty spell. (I usually clean it about 4-5 times a year, and normally if the filter is dirty, the filter pressure would go up, not down. So I'm assuming this is not a problem with the filter.)
No visible leaks that I can see.
I really appreciate anyone who's able to take a look at the video and give me some pointers as to what to do or even search for next.
Symptoms: low pressure in the filter (under 10 when it used to be 15-20). The filter and skimmer and pump basket have already been cleaned. Very low suction in the skimmer and with the pool vacuum. Water bubbles in the return lines. I've tried adjusting the valve going into the pump to 100% skimmer, 100% side port vacuum, or 50-50. Doesn't make a difference. I regularly release the air valve, and it sometimes lets out some air, but also lets out water at a low pressure (back in the day, water would shoot out vigorously; now it just peters out). The pool itself doesn't seem to be cleaned well -- I see debris both at the bottom and on the surface that aren't getting cleaned.
The filter was cleaned roughly a month ago and we haven't been through an unusually dirty spell. (I usually clean it about 4-5 times a year, and normally if the filter is dirty, the filter pressure would go up, not down. So I'm assuming this is not a problem with the filter.)
No visible leaks that I can see.
I really appreciate anyone who's able to take a look at the video and give me some pointers as to what to do or even search for next.