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Hi all

Got an old problem that I want to get sorted out on our Hymer (spluttering taps/air in the system). I've even been on this forum before seeking answers, but i never did cure the problem, after trying all sorts i now want an end to it, so my question is, can anyone recommend somewhere that I can take it, even if I have to wait a while longer for them to open up shop again. I don't mind if it's a mobile technician or I have to take it in somewhere, i can look on the internet for somewhere. However, its always better if someone has been recommended for good service and or value, hence my request to my fellow motorhomers.

We live in the East Riding of Yorkshire, thanks in advance.

Mike

 

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Do you have a submersible pump or an external mounted pump?

 

We have a Trail King style pump in our AutoTrail and a couple of years ago after a winter drain down I had spluttering taps and eventually tracked it down to a hairline crack in the pump body.

I obviously had not fully drained the pump internals and the resulting freeze had cracked the body. I did a temporary repair with super glue until I could get a new pump. I only spotted the crack as the pump got damp when in operation. It did not leak when under pressure but not actually pumping.

 

For the cost of a pump it may be a worthwhile to try and at the worst you then have a spare pump.

 

Keith.

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Mikeandthewife - 2020-07-01 2:46 PM

 

Hi all

Got an old problem that I want to get sorted out on our Hymer (spluttering taps/air in the system). I've even been on this forum before seeking answers, but i never did cure the problem...

 

It would be interesting to know what advice you received in the past, as I can’t find your earlier enquiry

 

https://forums.outandaboutlive.co.uk/forums/search/query.asp?action=search&searchforumid=all&keywords=&author=mikeandthewife&days=&Submit=Search

 

unless it was this thread

 

https://forums.outandaboutlive.co.uk/forums/Motorhomes/Motorhome-Matters/Plumbing-problem-on-2006-Hymer-B-class-524/42038/

 

though a different user-name originated that discussion.

 

 

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Hi Derek

Spot on, I couldn't find my old post to this forum, you did (the second thread), it was under this name when I was still at work. I tried everything suggested, I'm obviously missing something but I can find it not, so have been living with it, now I just want to get it done and maybe take it somewhere when/if allowed

Mike

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I can’t recommend anyone near to you who might check out the spluttering problem, but whoever you do get to look at it, it would be a good idea to give them a copy of the 2016 forum discussion as that covered the logical possibilities pretty comprehensively.

 

It may be necessary to deal with your Hymer’s water system ’sectionally’ to try to detect where the culprit is lurking, and doing this may not be straightforward.

 

While on holiday in France the pipework of my Rapido’s water system suddenly began to vibrate violently, sufficiently so that we cut the trip short and came home to the UK. I thought the water pump was at fault (because that seemed most likely) but replacing the pump made no difference. Once the water pump had been judged not guilty and I’d investigated further, as I couldn’t access much of the Rapido’s water system pipework, I sidestepped the problem by rejigging the pipework so that the part of the system in which I thought the problem lay was no longer in use. Fortunately this cured the vibration, but I’ve no idea how a motorhome specialist would have addressed the problem or how long they would have taken.

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Hi Derek

Yes the usual approach as with most problems is trial and error and process of elimination, I tried a new pump and was going to change the kitchen tap as the next move, to rule that out. However, nearly fell over when I found out the price was over £100 and it was only a wild guess this might solve it anyway.

What you suggest though is an excellent exercise, for the sake of a couple of metres of plastic tube costing pennies, I could bypass all the van's hidden pipework (above floor level) direct to each point of the process/flow of water and at the very least, rule out an out of view leaking pipe. I will try this next.

 

Simple, quite obvious approach but I just didn't see it, THANKYOU

Mike

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I won't trawl through all those old threads - but...

 

I had a similar problem with my Hymer, and it was only the galley tap that I had a problem with.

It would take considerable time to run clear and at full bore, even after quite a short time of inactivity.

 

I checked the pump, which had been replaced [badly] and discovered they had fitted a non-return valve at the pump end.

However, the pump already had an integral NRV. I couldn't see that would be the problem, although I considered it unnecessary resistance to the flow, so removed it.

 

This did indeed improve the flow, but not the spluttering, however what I did discover was a tiny leak from the inboard side of the tank spigot/hose connection [adjacent to the inspection hatch on mine] Note this was inside the tank.

Just enough to allow water to drip out via gravity [hearing this faint dripping coming from inside the tank was how I noticed]

 

Now all sort just by nipping up the hose clip.

I've assumed that being the first tap in the run was the reason the galley tap suffered, and that the additional pipework had sufficient drops in level [which would be logical] before reaching the bathroom tap and shower which had never really suffered.

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Hi

Seems like you had fun trying to find the blooming fault the same as me.

I've been through the whole system checking and tightening to no avail, my next step is to test each section of pipe with a temporary section to rule out the actual pipework of the system as Derek suggested, thanks for your input, I will double check tank area

Mike

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I recall there was a few recommendations on this forum, for a mobile engineer in the East Riding area a couple of years ago.

Unfortunately I can't find the posts using "mobile engineer" in the search.

So an internet search should be able to come up with some answers.

 

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Thanks Derek, Beverley is close to us so will check DTH out with regards reviews/feedback, going to try your advice with regards to ruling out all the pipework first, it should save me money either way, I'll either find the problem or reduce time/labour costs with an engineer
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Apologies if this has been covered previously - But, have you checked the NRV?

 

If you've replaced the pump with the Reich type, remember - not all come with an integral NRV.

 

One other quick option is to fit an additonal in-line NRV close to the galley tap - it will only cost a few bob.....

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I agree that the NRV on the water pump is the prime suspect, but it’s perhaps worth mentioning that Mike's original enquiry in 2016 said

 

“...the problems are not just one tap”

 

so adding an NRV close to the kitchen tap might not cure the problem. And then there’s the question of whether the NRV should go in the tap’s cold or hot water-feed, or in both. ;-)

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