ChiInSFO
07-25-2006, 09:10 PM
My pump is often losing prime, so it isn't pumping water after it turns on unless I do one of the following:
1) open and close the filter basket
2) if 1 didn't work, I would add some water to the filter basket
Some observations I made:
- sometimes water comes out of the lid of the filter basket when I shut off the pump
- drips coming from the cartridge filter; seems to be from the gap of the metal casing clamp -- not sure how else to describe it -- see below for longer winded version
- a few drips from one of the pipe connections
- bubbles from the outlets
They didn't all come at once -- they came in the order I listed over a few seasons. I've checked that the o-rings for the filter basket and the cartridge filter don't have cracks.
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Suggestions from a thread I had hijacked :o
- lube o-ring and tighten the filter basket -- REALLY tighten it
- heat up pipe connection and tighten (?)
- check if o-ring has been "squared"
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The cartridge filter I use is a Quantum CM Cartridge Filter. It has a metal clamp that holds the cover and base together. The clamp itself has gaps (to allow flexibility?), and the leak comes from where the gaps don't cover. You see a diagram of the filter, but it's hard to see the gaps in the clamp: http://www.hydropool.com/cgi-bin/hydro/scan/fi=schematic/se=%22Quantcm%22/sf=2/tf=3/to=n/sp=templates::schematic/st=db/ml=100.html
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Tracking a thread I found that had a similar problem to mine:
http://www.poolforum.com/pf2/showthread.php?t=4131
1) open and close the filter basket
2) if 1 didn't work, I would add some water to the filter basket
Some observations I made:
- sometimes water comes out of the lid of the filter basket when I shut off the pump
- drips coming from the cartridge filter; seems to be from the gap of the metal casing clamp -- not sure how else to describe it -- see below for longer winded version
- a few drips from one of the pipe connections
- bubbles from the outlets
They didn't all come at once -- they came in the order I listed over a few seasons. I've checked that the o-rings for the filter basket and the cartridge filter don't have cracks.
--------------------------------------
Suggestions from a thread I had hijacked :o
- lube o-ring and tighten the filter basket -- REALLY tighten it
- heat up pipe connection and tighten (?)
- check if o-ring has been "squared"
----------------------------------------
The cartridge filter I use is a Quantum CM Cartridge Filter. It has a metal clamp that holds the cover and base together. The clamp itself has gaps (to allow flexibility?), and the leak comes from where the gaps don't cover. You see a diagram of the filter, but it's hard to see the gaps in the clamp: http://www.hydropool.com/cgi-bin/hydro/scan/fi=schematic/se=%22Quantcm%22/sf=2/tf=3/to=n/sp=templates::schematic/st=db/ml=100.html
----------------------------------------
Tracking a thread I found that had a similar problem to mine:
http://www.poolforum.com/pf2/showthread.php?t=4131