Question about Intex Krystal Clear Model 635 Pool Filter Pump 1500 Gph

1 Answer

Intex 633 lost suction

I have an Intex 633 and it seems to have lost all suction when I turn it on. I can hear the motor running but no suction. I have tried releasing air via the air valves, and I have also checked the hoses and grate where the inlet hose attaches for blockages, but found nothing. I have had the pump for three years so I wasn't sure if the pump is just at the end of its life

Thanks!

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  • Electric by George Jul 13, 2010

    have you tried to force water down the intake hose to make sure any chance of air lock is eliminated?

  • seanf12 Jul 13, 2010

    I haven't...what is the best way to do that?

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  • Contributor
  • 13 Answers

I have seen a common problem when customers change / clean their filter is that put the DRY clean filter in the skimmer box or filter holder and sometimes it can cause an "air lock"
Just take your garden hose put in the intake outlet of your pool and turn that baby on....If you start seeing air bubbles on the discharge end of the line most likely that was your trouble.
If the problem still persist then at that time look into pump repair / replacement.
Good Luck!

Posted on Jul 13, 2010

  • Helen Marks Aug 18, 2012

    This did not work for me

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Posted on Jan 02, 2017

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