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Open Roads Forum  >  Tech Issues

 > Water Pump Being Weird. Is it dead?

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jorn

Twin Cities

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Posted: 04/21/20 06:37am Link  |  Quote  |  Print  |  Notify Moderator

I hope the pump is broken, because tracing the line to the tank will be a dreadful experience! [emoticon]


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jorn

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Posted: 04/21/20 06:39am Link  |  Quote  |  Print  |  Notify Moderator

craig7h wrote:

Have you cleaned the sediment screen on the pump?
Yep. It wasn't bad. Beyond that, I have no further pump maintenance skills.

RoyF

Fayetteville Arkansas

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Posted: 04/21/20 07:42am Link  |  Quote  |  Print  |  Notify Moderator

Another thing to check: If there is a short hose for sucking anti-freeze into the lines, check for a loose cap on the end. (The cap on mine was loose once, letting the pump suck air into the lines with what sounds just like your problem.)

Hondavalk

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Posted: 04/21/20 08:34am Link  |  Quote  |  Print  |  Notify Moderator

RoyF wrote:

Another thing to check: If there is a short hose for sucking anti-freeze into the lines, check for a loose cap on the end. (The cap on mine was loose once, letting the pump suck air into the lines with what sounds just like your problem.)

X2





midnightsadie

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Posted: 04/21/20 08:35am Link  |  Quote  |  Print  |  Notify Moderator

on mine that plastic strainer was cracked. .don,t give up .

wnjj

Cornelius, Oregon

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Posted: 04/21/20 10:42am Link  |  Quote  |  Print  |  Notify Moderator

jorn wrote:

craig7h wrote:

Have you cleaned the sediment screen on the pump?
Yep. It wasn't bad. Beyond that, I have no further pump maintenance skills.

Taking apart the pump is fairly easy. Just remove screws until you find small plastic and rubber parts. Take photos as needed so you don’t need to remember how they fit together, rinse them off with water, rinse the housing where the hoses connect and reassemble.

Gjac

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Posted: 04/23/20 06:21am Link  |  Quote  |  Print  |  Notify Moderator

You have gotten a lot of good suggestions so far, if none of them fix your problem check the parting line in the housing itself especially if you see a slight amount of corrosion where the housing comes together. The rubber diaphragm acts as a seal. You can remove the bolts and clean the diaphragm itself. Also clean the parting flange itself on both sides or the housing, then reassemble torquing the bolts evenly. I had to use a silicone sealer to stop the air leak, but my pump was 22 years old.

jorn

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Posted: 04/23/20 07:58am Link  |  Quote  |  Print  |  Notify Moderator

UPDATE!

So, I swapped in a new pump. Pretty much the same issue. Grrr

Going on a hunch, I took the cap off my winterization inlet and firmly plugged the hole with my thumb. The pump finally stopped. Clearly, there was enough of a vacuum, and associated Leake, to allow air to get slurped into the supply-side of the system, even with the valves in the "Use" position.

I even tested this a bit more by hooking the winterization hose up and submerging its end in a pail of water. Yep! It was sucking the tiniest bit of water.

The cap I was suing did not have the familiar little ball-valve-looking plug in the end of it which seems to prove a better seal than the one I was using... which did not have said stopped. Where the correct cap has gone, I cannot say.

So, I use a combination of a wad of electrical tape in the end, and some thread tape on the threads to seal the cap on a bit better, and my system seems to run as expected now. I'll go get the correct cap sometime soon.

I'll chock the price of the new pump up to the price of education. Air least I didn't;t have to rip the belly down on my camper (again!) I hate that.

Happy trails!

dieseltruckdriver

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Posted: 04/23/20 09:17am Link  |  Quote  |  Print  |  Notify Moderator

I replaced the pump on my old 5er for a quieter version and kept the old one for a spare. I usually use it to pump from my 6 gallon jugs to my fresh water fill. It is much better than pouring the water in!


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wnjj

Cornelius, Oregon

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Posted: 04/23/20 10:56am Link  |  Quote  |  Print  |  Notify Moderator

dieseltruckdriver wrote:

I replaced the pump on my old 5er for a quieter version and kept the old one for a spare. I usually use it to pump from my 6 gallon jugs to my fresh water fill. It is much better than pouring the water in!

Yep. Add alligator clips and wire to clip onto your batteries and some pieces of hose. I plumbed my spare with garden hose thread on the outlet so I can pump water to wherever it’s needed by using the fresh water hose.

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