pump loses prime

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rett47
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Joined: Wed 26 Dec, 2007 12:09

pump loses prime

Postby rett47 » Wed 26 Dec, 2007 12:17

my pump loses prime overnight when it is off and will not re-prime unless I fill the basket and run the water hose in the skimmer???? this is a recent problem for me what can be wrong
thanks


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mr_clean
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Postby mr_clean » Wed 26 Dec, 2007 13:01

lube the O-ring under pump lid or replace it if it looks bad. Also check air relief valve on top of filter sometimes gasket/O-ring can go bad.
Guest

Postby Guest » Wed 26 Dec, 2007 15:27

thanks, is it sucking air? is that why it loses prime?
where is the air relief valve?
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mr_clean
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Postby mr_clean » Wed 26 Dec, 2007 16:12

yes, when the pump lid o-ring gets dry it can suck air & leak air, also sometimes the filter air releif valve can leak which is on top of filter. It's a black-plastic valve with round handle you can unscrew & let air out of filter. If not then I would think you just have press-gauge alone which you can unscrew & retape so you know it's not leaking.
This would be easiest thing to check for, after checking let pump run for 5mins and look at return lines. There should be no air bubbles coming out in water.
sparkwatercleaner
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Postby sparkwatercleaner » Sun 30 Dec, 2007 13:57

After priming pump, turn it off and see if air gets into it through the o-ring, or trough the impeller hole.

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