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Old 11-01-2014, 01:56 PM   #1
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I think i may have ruined my water pump

Well its that time of year for winterizing here on Long Island. I usually just suck antifreeze thru the pump pushing the water out of the lines and wait to visually see pink stuff coming from each location. This year with me reading so many on here blow the lines out then do the antifreeze I figured Id try it. I set the regulater for about 40psi on the compressor and like a dope I hooked up it up to the inlet side of the pump. Not thinking about and then realizing the fact this side never sees any pressure at all I disconnected it and connected to the spare port next to the outlet side. After blowing the lines clear I fed the tube into the antifreeze bottle and hooked up to the pump and turned it on. It does not turn off now after it pulls a prime. Pump constantly ran on me even when there were no faucets open. I know this thing should shut off once it pulls a good prime and the outlet line is charged with fluid. Im thinking I screwed up the pressure sensor. Guess I will be replacing the pump in the springtime hope this helps somebody else avoid a problem.
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Old 11-01-2014, 02:16 PM   #2
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It's just air in the line after being blown out.



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Old 11-01-2014, 02:31 PM   #3
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Run a fixture to bleed air. The thrown works best on ours. Did you switch the water heater to by pass mode so it won't fill? Good Luck!
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Old 11-01-2014, 03:26 PM   #4
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Yeah water heater was bypassed but I guess as Turbs noted there may be air in the line from blowing it out before filling with the pink stuff. I'd assume any air trapped would keep the pump running.
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Old 11-01-2014, 04:18 PM   #5
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Quote:
Originally Posted by JFM-jr View Post
Yeah water heater was bypassed but I guess as Turbs noted there may be air in the line from blowing it out before filling with the pink stuff. I'd assume any air trapped would keep the pump running.
I'm guessing this is the case.

But I'm pretty sure that's your problem

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Old 11-01-2014, 07:15 PM   #6
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Most pumps have "flapper" valves, that is when the pump suctions, the inlet valve opens, when it pressurizes that valve closes and the outlet valve opens. It's a pass through system and pressurizing the inlet would just open both valves simultaneously and should not hurt the pump.
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Old 11-01-2014, 07:19 PM   #7
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This is good to hear I figured there was some sort of diaphram in there that I buggered up by pressurizing the inlet side. Winters up north stink! Not looking forward to the winter ahead.
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