No water from any taps - help? (1 Viewer)

Colin-B

Free Member
Oct 14, 2022
7
34
Funster No
91,898
MH
Burstner Argos 748-2
Hi, have just cleaned my internal water tank after a few weeks laid up. Since refilling with fresh water, and vigorously shaking the submersible pump, no water arrives via any tap. The pump appears to be working - it makes a noise and vibrates when any tap is opened, but no water arrives! Can the pump be a goner even though it is turning?
 
Dec 10, 2013
3,427
12,536
South Staffs
Funster No
29,333
MH
Pilote P740GJ
Exp
Since 2013
Check your dump valve hasn’t opened, we have had a couple of cold nights this week.
Turn your tap on and look under the Motorhome, if there is water running out your dump valve is open.
 
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Jan 1, 2019
762
1,427
Pembrokeshire
Funster No
57,780
MH
Hymer B704 PL
Exp
Since 2017
Check the pipe is attached to pump. The pump is working but if the pipe is not attached then the water has nowhere to go. Simple fix.
 
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Apr 12, 2010
4,846
52,607
Bury St Edmunds, West Suffolk
Funster No
11,027
MH
Weinsberg Cara
Exp
since 2007
Fill up tank and check no water is running out under the van. Open the tap/ shower furthest away from the tank and clear any airlocks, it takes a while. This should do the trick. The boiler takes a while to fill up.
Phil

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Nov 7, 2015
500
473
Newport, Shropshire
Funster No
40,071
MH
Autosleeper Broadway
Exp
since 2015 previously caravaning 25 years
You could remove the hose from the pump then run the pump to see if there is any flow, another possibility is that the pump impeller is loose on the shaft
 
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Apr 27, 2016
6,942
8,110
Manchester
Funster No
42,762
MH
A class Hymer
Exp
Since the 80s
Hi, have just cleaned my internal water tank after a few weeks laid up. Since refilling with fresh water, and vigorously shaking the submersible pump, no water arrives via any tap. The pump appears to be working - it makes a noise and vibrates when any tap is opened, but no water arrives! Can the pump be a goner even though it is turning?
Welcome to the Fun forum :giggle:
Ignore the moaners, there's always one...
To answer your question, if the impeller shaft inside the submersible pump has snapped, then the motor will be making a noise but not pumping any water. It happens on submersible pumps, more usually if they get frozen, but I assume that's not a possibility in the last few weeks.

More likely it's an air lock inside the pump, or maybe somewhere in the hose lines. Can you check the pump by taking it out and putting it in a bucket of water? If you apply 12V power, you should get a fountain of water at least a couple of feet high.

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Colin-B

Free Member
Oct 14, 2022
7
34
Funster No
91,898
MH
Burstner Argos 748-2
Yes, another one never to be seen again.
Thank to everyone who replied, and no, I’m not a ‘five minute wonder’! The reality is that I am away in France, not at home, and couldn’t initially locate any immediately available spare parts. As it turns out, the original pump was in fact kaput - it sounded as tho it was working, but in practice it wasn’t! Long story short - sourced a replacement pump this afternoon and fitted it this evening. Problem solved, water flowing in all taps - back on the road as a Happy Camper!
 
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Colin-B

Free Member
Oct 14, 2022
7
34
Funster No
91,898
MH
Burstner Argos 748-2
Welcome to the Fun forum :giggle:
Ignore the moaners, there's always one...
To answer your question, if the impeller shaft inside the submersible pump has snapped, then the motor will be making a noise but not pumping any water. It happens on submersible pumps, more usually if they get frozen, but I assume that's not a possibility in the last few weeks.

More likely it's an air lock inside the pump, or maybe somewhere in the hose lines. Can you check the pump by taking it out and putting it in a bucket of water? If you apply 12V power, you should get a fountain of water at least a couple of feet high.
Thank you for your response. I think you’re correct that there was a problem with the shaft. As noted below, have now sourced and fitted a replacement pump and happy to report all ok now.
 
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Colin-B

Free Member
Oct 14, 2022
7
34
Funster No
91,898
MH
Burstner Argos 748-2
There is a Funster membership number, so deffo a member. Maybe didn't expect replies so quickly 😉
You’re not wrong! Also, as you can see below, was trying to sort a problem which arose a long way from home and abroad, where spares aren’t always as quick and easy to source as at home. Happily all now sorted via a replacement pump.
 
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Colin-B

Free Member
Oct 14, 2022
7
34
Funster No
91,898
MH
Burstner Argos 748-2
Check your dump valve hasn’t opened, we have had a couple of cold nights this week.
Turn your tap on and look under the Motorhome, if there is water running out your dump valve is open.
Thanks daveandsan - turns out the problem was a faulty pump - now replaced and all good.
 
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Colin-B

Free Member
Oct 14, 2022
7
34
Funster No
91,898
MH
Burstner Argos 748-2
Don't even think he read any replies.!!!!
Thanks Robby, read all the replies, just not as soon as you might have thought!! Turns out it was a faulty pump - now replaced and all back to normal.

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Colin-B

Free Member
Oct 14, 2022
7
34
Funster No
91,898
MH
Burstner Argos 748-2
You could remove the hose from the pump then run the pump to see if there is any flow, another possibility is that the pump impeller is loose on the shaft
Thanks Spanner - deffo a problem with the old pump, managed to source and fit a replacement here in France and everything back to normal.
 
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Feb 5, 2020
2,392
89,705
Crosby
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68,535
MH
Smileo 202
Exp
Was a Newbie but getting the hang of it now.
Colin-B
Great to hear that you got the problem sorted and that you have joined the pool of information and help that is motorhome funsters.

Hope the rest of thr trip goes okay. 👍🏾

Where abouts in France are you and what's the current fuel situation???
 
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Jul 5, 2013
11,761
13,776
Tunbridge Wells, Tunbridge Wells, UK
Funster No
26,797
MH
A class
Exp
Since 2013
Colin-B

You are a member and you can read most of the forum. But in order to make any more posts and have access to all of the forum you will need to become a subscriber. IMHO it will be the best £20 you will spend on your motorhome. The advice I get on here saves me a lot more than that each year.
 
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Apr 11, 2021
51
67
Forest of Dean, United Kingdom
Funster No
80,335
MH
Dethleffs
Exp
2 years
Hi, have just cleaned my internal water tank after a few weeks laid up. Since refilling with fresh water, and vigorously shaking the submersible pump, no water arrives via any tap. The pump appears to be working - it makes a noise and vibrates when any tap is opened, but no water arrives! Can the pump be a goner even though it is turning?
Had a similar problem with the pump on our van pump motor spinning but impellor not moving replaced I don't think it takes very much to stop impellor replacement pump was about 50 quid
 
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