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Old 05-01-2016, 06:26 PM   #1
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Question What's wrong with my water pump?

We got the trailer out to de-winterize this weekend and all is good except the water pump (and an uninvited mouse guest over the winter - but that's been cleaned up already).

I know that most of these pumps can run dry without issue, but it seems that this started near the end of last season when my 3 year old left the water running in the bathroom, we had gone out for a couple hours and when we got back we noticed the tap still on (and lack of water).

Now it starts and stops and if it sits for a few minutes builds up a bit of pressure in the lines, but after a few seconds of running water there is almost no flow at all and the pump isnt making normal strong pump noise that we are used to.

I couldn't attach the video directly to the board but here's a link:
https://drive.google.com/file/d/0B01...ew?usp=sharing

In the video I set the phone on the edge of the drawer where the pump is and go back and flush the toilet, I get good pressure for a couple seconds and then continue to hold the flusher and you can hear how intermittent the pump is when I am holding the toilet flush open.

I did make sure nothing else was leaking (taps/lines/hot water tank), and took it apart and checked the filter (nothing in the screen) and other than that I am at a loss. Any suggestions or should I just try and get the pump replaced?

Thanks.
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Old 05-01-2016, 07:15 PM   #2
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Is your battery hook up properly? Almost sound like the water pump is running in reverse direction?
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Old 05-01-2016, 07:18 PM   #3
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Good idea but its definitely not connected backwards, it worked great last season until it ran dry.

Thanks.
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Old 05-06-2016, 10:45 PM   #4
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Going to replace it with a Shurflo 4008 and see how it works, aside from the tight squeeze of having to get at it through the drawer it should be a pretty easy swap. Hope that'll do it.
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Old 05-07-2016, 02:37 PM   #5
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Motor sounds OK, perhaps you have a hole in the diaphragm from running it dry for so long. You have to take it out to check anyway. Don't know if the parts are replaceable.
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Old 05-07-2016, 09:31 PM   #6
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Just finished replacing it, new ShurFlo is in and works great - built up pressure quickly and its super quiet compared to the OEM pump.


Hooked the old one up to 12v with alligator clips and had a bucket of water and it was pushing water out but it was quite slow, I assume as well it would have issues building pressure if I had something attached to the outflow. Will take the old one apart at some point and see if I can see anything, maybe keep it as a spare or use it for winterizing if I can get it going.

Thanks!
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Old 05-25-2016, 09:41 PM   #7
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Take that old pump apart, it's only like 6-8 screws. This happened to me. I bought a new one after the winter, and after I hooked up the new one, curiosity got the best of me and I took apart the old one. One of the outlet valves had gotten stuck from drying out I guess and didn't want to move. I pushed on it ever so slightly and it opened right up. The old pump is now a spare part, and will work just fine.
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Old 08-25-2016, 10:40 PM   #8
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Quote:
Originally Posted by YEGrolo View Post
Just finished replacing it, new ShurFlo is in and works great - built up pressure quickly and its super quiet compared to the OEM pump.
where did you get that pump? and what was the cost? we have, well had, a 292BHDS until it was recently stolen. I was wanting to change out the OE pump for a quieter model because of the poor placement. under the kids bunk.....not sure what they were thinking there.

I am also in the Edmonton area
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Old 08-26-2016, 12:21 AM   #9
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Quote:
Originally Posted by DMcGruther View Post
where did you get that pump? and what was the cost? we have, well had, a 292BHDS until it was recently stolen. I was wanting to change out the OE pump for a quieter model because of the poor placement. under the kids bunk.....not sure what they were thinking there.

I am also in the Edmonton area
Hey, I picked it up at Edmonton RV Service just off 91st/63ave. Edmonton RV - RV Service

I don't remember what I paid but it was basically the same price as what it was on Amazon.ca plus shipping, and I didn't have to wait for it.

Thanks.
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