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Old 10-21-2014, 11:54 AM   #1
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Join Date: Sep 2012
Location: Utah
Posts: 97
Water Pump Winterizing Advice

Didn't see a past thread on this so to pose a general question to the group... I in the past have disconnected my water pump from the in and outlets and pulled the filter screen off completely when I winterized.
Call me overly cautious, but I don't want anything in the pump or filter cannister.
Prior to all of this I blow everything out, pump antifreeze through, then blow and run that out too. (See overly cautious!)
My question is does anyone have a recommendation on what to do with the pump and filter. i.e. leave it as is or disconnect?
Part of my fear comes from last year I think the diaphram in the pump actually dried out and cracked that way since there was no liquid there at all, and I had to replace the pump this past spring.

What do you all do?

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Old 10-21-2014, 12:12 PM   #2
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I remove water with compressed air, then pump anti-freeze and leave as is conected. No issues in 4 years.

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Old 10-21-2014, 12:12 PM   #3
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I leave the antifreeze in the pump...keeps everything well lubricated.
6 winters now , and never had an issue.
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Old 10-21-2014, 01:03 PM   #4
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I got away with using the pump to move my antifreeze without issue for 12 years. We'll see how the 5er pump does but I can't foresee any issue.
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Old 10-21-2014, 06:20 PM   #5
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I am retired from the marina bussiness and I would say that over the years we winterized over 3000 water systems . I had the techs pump the antifreeze thru the system with the pump and we never lost anything to either freeze up or other failures, and belive me ,if something was broken and the boat owner thought he could get it fixed for nothing,I would have heard about it!
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pump, water, water pump, winter, winterize

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