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Old 10-28-2019, 05:02 PM   #1
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Shurflo pump leaking from switch assembly?

so i was loading up for a crabbing trip this weekend and noticed my water pump is leaking from the very bottom switch assembly? Anyone else have this issue?

Model 4008-101-e65
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Old 10-28-2019, 05:24 PM   #2
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... I just had mine apart because the micro switch that is actuated by the membrane was burned out.
So the membrane (about as bidg as a quarter) has a hole in it letting it leak out the bottom.
You can find that whole assembly at Amazon including membrane for $12-15. I still have my invoice and can look it up if you need me to.
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Old 10-28-2019, 05:43 PM   #3
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Hmm, wondering if that might be a good Spare to have...
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Old 10-28-2019, 05:47 PM   #4
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here is a link, but you have to find it for your model#
https://www.amazon.com/SHURFLO-94-80...5AGHPQP22WS8YT
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Old 10-28-2019, 06:12 PM   #5
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Yep, thanks
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Old 10-28-2019, 08:01 PM   #6
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Thank you. I did find the parts breakdown and got the part number for the bottom switch assembly.

Maybe a coincidence but it never leaked until today when I added some rv antifreeze and ran the pump/faucets.

I don’t really do the whole winterize things beings we are in Oregon and only have maybe 4-5 nights below freezing for 8 hours/night. So not a constant freeze. Plus we use the alipine probably every other weekend and it is always plugged into 30amp at my house.

Alpine06, was that membrane just corroded?
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Old 10-28-2019, 09:12 PM   #7
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Shurflo pump

I just replaced the shurflo pump on my 2017 HR Vacationer because it was also leaking from the valve body on the pump. There was a small crack in it.
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Old 10-28-2019, 09:43 PM   #8
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You can see the drop of water coming at the seam where the switch assembly mates to the valve assembly. Just off how this all of a sudden came about after I added antifreeze
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Old 10-28-2019, 09:44 PM   #9
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Quote:
Originally Posted by Hoaglandt616 View Post
Thank you. I did find the parts breakdown and got the part number for the bottom switch assembly.

Maybe a coincidence but it never leaked until today when I added some rv antifreeze and ran the pump/faucets.

I don’t really do the whole winterize things beings we are in Oregon and only have maybe 4-5 nights below freezing for 8 hours/night. So not a constant freeze. Plus we use the alipine probably every other weekend and it is always plugged into 30amp at my house.

Alpine06, was that membrane just corroded?


... no the membrane is made of rubber. But it is seeing the water pressure on one side and has to work against a plunger that is spring loaded on the other side. I think it just fatigued after so many cycles. I was actually amazed how hard that plunger is to press down for 55psi pressure. Anyways mine went out at a trip to the Badlands... I had the part delivered to the campground and lone and behold the UPS driver knocks on my door 2 days later and drops the part off. Amazing...
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Old 10-28-2019, 09:44 PM   #10
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Are you guys replacing it with the e65 or a65 model?
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Old 10-28-2019, 10:23 PM   #11
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Thank you very much for the info. I’m assuming gotta drain the tank to replace. At least the tank is only 1/4 full right now.
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Old 10-29-2019, 07:32 AM   #12
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Thatming gotta drain the tank to replace. At least the tank is only 1/4 full right now.

Tip the coach with your jacks and you probably don't need to drain any fresh water. iiwm I would install a shutoff valve in the line before the pump then install a new pump and repair the old to keep on board for a spare. A dead pump can be a real problem if you are boondocking.
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Old 10-29-2019, 10:22 AM   #13
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I second the shut-off valve!
My pressure switch stared leaking as well right after we purchased our coach (had been sitting prior to our purchase). Next time around will be a much easier repair.
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Old 10-29-2019, 06:44 PM   #14
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Is there any way to use the pump to circulate antifreeze?

Having a heck of a time getting it in the fresh water tank with that little spring check valve at the fill spout.
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