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Old 03-10-2019, 02:11 PM   #1
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Pump Failed and Found This

Our water pump has apparently failed. Turn on the switch and turn on a faucet and nothing happens. Ok, no big deal. A replacement will be easy to install. But on examination I found a twisted and collapsed inlet hose. It is attached to the winterization valve with one of those copper pex crimps used in multiple places in the trailer. I have never worked with pex and have no idea how to remove the crimp. I plan on cutting the hose where it emerges from the woodwork and installing a straight connector with hose clamps. Can I just lever off the copper pex crimps with a flat blade screwdriver or do I need an expensive tool I will rarely use?
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Old 03-10-2019, 02:26 PM   #2
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I guess it is what you consider expensive. Here is a rotary tool at Harbour Freight since you are in the US.
That and the grinding discs should get the job done for $30.

Here is a link how to do it. http://youtu.be/qwrIawlT70A
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Old 03-10-2019, 03:19 PM   #3
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I have dealt with these type clamps before and they are tough and not meant to be easily removed. You will end up destroying the underlying fitting if you try to just pry it off.

The only solution I know of is.to cut the band in some fashion, being careful not to cut too deeply and damage the fitting. I have used a hacksaw in other situations, but I doubt you will have room to use it here.

I believe the prior post suggestion of using a Dremmel type grinder might be your best bet.

One other word of caution, when you are finished be sure to repeatedly check your repair for leakage. I have seen cases where this type repair can leak unnoticed for long periods of time and eventually cause massive damage from floor rot.
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Old 03-10-2019, 04:05 PM   #4
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I've cut them off using either just a hacksaw blade or a blade with a handle.

It seems to be easier to make the cut at a diagonal. That way only one point of the blade is in contact and it's much easier to monitor the depth of the cut. That's not as important if you're not reusing the hose.

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Old 03-10-2019, 04:19 PM   #5
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Thanks for the tips. After I cut the hose I'll be able to lift the winterizing valve along with the pex crimp out of the bench seat and have plenty of room to work with. I think I'll try a hacksaw blade first.
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Old 03-10-2019, 05:03 PM   #6
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You could just cut the hose in the middle of the visible run, re-connect it with the straight connector (for hose, not PEX) and hose clamps, and leave the crimped connections alone. The hose is probably still fine, and just needs to be unkinked.
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Old 03-10-2019, 05:31 PM   #7
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Quote:
Originally Posted by Brian B-P View Post
You could just cut the hose in the middle of the visible run, re-connect it with the straight connector (for hose, not PEX) and hose clamps, and leave the crimped connections alone. The hose is probably still fine, and just needs to be unkinked.
Excellent idea, Brian. I will do that.
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Old 03-10-2019, 06:43 PM   #8
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Can the hose be rotated at the crimp fitting location? If so you may be able to get the kink out without cutting or disconnecting anything.
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Old 03-10-2019, 07:07 PM   #9
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Can the hose be rotated at the crimp fitting location? If so you may be able to get the kink out without cutting or disconnecting anything.
Nope, tight as a drum. Looks like the installer attached the hose to the valve first and then had to turn the valve to attach it to the pump and that's what kinked the hose.
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Old 03-10-2019, 09:02 PM   #10
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You could even use an elbow (45-degree?) instead of a straight coupler, if that would make the paths for each section of hose straighter.
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