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Subject Topic: hot water pipe has overflow? Post Reply Post New Topic
31/7/2010 at 8:09pm
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Hi, can anyone help with this problem we have, Our first caravan its a abi daystar, and has a carver water heater which works fine both on gas and elec, but we can't work out why whenever we turn taps on there is water pouring out of the overflow pipe. There is a red hose out of top right of heater which then has a push fit T piece, one side goes to water pipes to the taps and the other side has a pipe connected which just goes out of the floor of the caravan, (this also has a non return valve inside, altho cant see what that would do)... we tried clamping this pipe off and everything works fine, but it must be there for a reason so am a bit worried....incidentley it all looks like the original pipework....thanks Lesley



31/7/2010 at 10:41pm
 Location: Keswick
 Outfit: Bailey
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Water tanks are supposed to have an overflow just in case. Same as at home

Phil



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If you're not on a fell your wasting your feet and for 2014 it's.......Feb Castleton Mar North Yors Moors; Apr Sutton on Sea; May Thirsk; Jun Clapham/Riverside (Lakes); July Wharfedale; August Crakehall; Sept Knaresborough; Oct Wirral Park/Clitheroe    


01/8/2010 at 12:38am
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Well I've never worked out what it's for but I know it's not part of the designed system and therefore definitely not needed

Only thing it might be useful for, is to allow air 'in' to assist draining and therefore similar to the current Truma heater?


01/8/2010 at 1:18am
 Location: Lanarkshire
 Outfit: Compass Lynx 340 2
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Hi Lesley, and welcome to the forum, as arc system says  "Only thing it might be useful for, is to allow air 'in' to assist draining and therefore similar to the current Truma heater?" , only thing i can think of is that the non return valve is stuck in the open position and allowing the water out instead of pushing it closed, just ordinary non return valve, put in wrong way round from the normal, so it acts like a vent. hope this helps, keep us posted.


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If everything runs smoothly then I must have done something wrong
If in Doubt Check it Out.



John


01/8/2010 at 10:12am
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Hi, thanks for reply,what a great site!... John we actually thought the non return valve may be problem so we took it all apart. as they were all push fit we had to replace all the pipes and fitting. we put it back together and its exactley the same. So now we tried putting the old the non retun valve inside the overflow pipe the "wrong" way round, this has solved the problem, but then there doesn't seem any reason to have overflow if its blocked?


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01/8/2010 at 10:15am
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Hi Gary, sorry missed your reply when I read John's......we seemed to feel it wasn't really needed, but it was a worry to block off, just in case it was needed for pressure release or something


02/8/2010 at 11:04pm
 Location: Lanarkshire
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Hi lesanles, As Gary says no reason for it to be there as not part of the original system, It must be an additional thing, to aid the drain down of water system as it may be very slow in draining, it will not be an overflow pipe.

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If everything runs smoothly then I must have done something wrong
If in Doubt Check it Out.



John


03/8/2010 at 4:14pm
 Location: None Entered
 Outfit: Swift Challenger Sport 524 VW Carave
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Surely, on a pressure system, the pump would keep operating and push in water, allowing it to continue running if an overflow pipe was fitted; until the aquaroll emptied and burnt out the pump!

Bertie.



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The 2 Tops


03/8/2010 at 4:40pm
 Location: Bristol
 Outfit: Lunar Conquest 544 a
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Hi Lesley , can you post a picture of the overflow ( showing where it has been fitted ) , or email a picture to me and i'll post it for you .

atb

Wizard



03/8/2010 at 10:27pm
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 Outfit: http: www.arcsystems.biz
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I should have been clearer, not required so get rid of it altogether

I've often give the same advice regarding the Truma one, which is meant to be there!, that can be more trouble than it's worth and opening the hot taps while draining achieves much the same result.


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08/8/2013 at 6:05pm
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Hi all. I have an Abi Ace Orbit, which I have used once this year. I am about to go out again and checking over the water system, I have had the hot overflow running as described here. This was OK last time out. Apart from messing about with it, any ideas. (Life was so much simpler under canvas!!!)



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