Water heater dump valve

[Jaws]

Heard a drip under the van the other day..
Turned out to be the dump valve leaking by..
Tried a quick reseat ( opened and closed the thing several times ) but to know avail.
Anyone know of a fix or replacement ?
Damned if I am going to pay £79 for a small bit of plastic that for any application apart from motorhome related would proly be about £7 or £8 !!

 

[pappajohn]

Could try backflushing john.

Stick a hose on the outlet and open the dump valve.
Back flow may dislodge any grit on the valve seat.

 

[DanielFord]

And failing that, they are simply a valve, there must be something one could improvise with at a plumbers merchants? As long as the hoses fit, shouldn't be too difficult to replace.

 

[scotjimland]

Remove and clean.. probably scale on the valve seat ... soak in warm water and white vinegar

 

[Techno]

What type of valve is it? manual automatic?

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[Jaws]

What type of valve is it? manual automatic?

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Thats the little bugger !!
I spent an hour yesterday looking for one and could not find it.. Cheers Andy.. Will be getting one on order !

Thanks to PJ, Dan and Jim too for your inputs.. all possibles and all good stuff, but for £6 I will just replace the thing !!

 

[Techno]

I would strip and clean it first as Jim suggested. That one is on AUCTION but BIN are around £28

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EDIT
Looking at the picture it looks like the metal head is crimped on so not a straight forward service

 

[GWAYGWAY]

My auto dump valve is a pain it wants to drop the water whenever the temperature is lowish not 4 degrees but just cooler than 10 and it will not reseal until I put a heater on it to warm it right up. If I leave the pump on it will drop the lot. A clothes peg has been brought into action to hold it up.

 

[ebo]

Just replaced the very same valve for a friend of mine, unfortunately they are unserviceable as techno said they're about £28.

 

[scotjimland]

not a straight forward service

they are unserviceable as techno said

No need to strip the valve to clean it.. simply soaking overnight in a hot water/white vinegar solution will remove the limescale..

if that doesn't work.. then perhaps replacing is the only option..

but before I forked out 30 quid I would still strip and see if it could be repaired.. nothing ventured .. etc

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[DanielFord]

Thats the little bugger !!
I spent an hour yesterday looking for one and could not find it.. Cheers Andy.. Will be getting one on order !

Thanks to PJ, Dan and Jim too for your inputs.. all possibles and all good stuff, but for £6 I will just replace the thing !!

I'm going to order one of them also. Mine works perfectly at the moment, but in a year or so when mine fails, I know I will have forgotten about this thread!

 

[hilldweller]

I'm going to order one of them also. Mine works perfectly at the moment, but in a year or so when mine fails, I know I will have forgotten about this thread!

Carry on like that and in a year or so you be done for being overweight.

 

[jaykay]

My auto dump valve is a pain it wants to drop the water whenever the temperature is lowish not 4 degrees but just cooler than 10 and it will not reseal until I put a heater on it to warm it right up. If I leave the pump on it will drop the lot. A clothes peg has been brought into action to hold it up.

Mine is the same (auto) and I also use a peg to keep it closed.

 

[Frentchy]

Hey Jaws where's your Dash Cam thread Gone??

 

[Jaws]

Hey Jaws where's your Dash Cam thread Gone??

I dunno ! Dropped out of site by now I should think mate..
Will take a look as doing another order when we get home though

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[rangi]

I've got an electric Automatic dump valve going spare, surplus to requirements.
Swap you for a BBQ gas point.

 

[Jaws]

Bloody ebay nutters.. That thing ended at £28 inc post.. about the same as a lot of places sell them new anyway !

I've got an electric Automatic dump valve going spare, surplus to requirements.
Swap you for a BBQ gas point.

Depends on what type of gas point you want mate ?
I do have a spare.. It is a fly lead type that I used to have t'ed in to the low pressure side of the regulator
Can supply all pipe and T piece if any good ?

 

[rangi]

Got a picture? Not quite sure what you mean.
I would like the one that fits into the Bodywork, so that you don't have to open the door. Can I use the one you have like that?

 

[etap]

Hi Techno 100 and Jaws,
Looking at the valve on eBay that you showed, it looks like the one we have on our new Chausson 610 but I thought it was the frost safety valve, if it is not then we don't have a frost safety valve on our MH, can you or anyone else inform me whether Chausson don't now fit them as standard? Be pleased with the answer.
Etap

 

[PeteH]

IF It`s 15mm Hard plastic? then look here:-

http://www.screwfix.com/p/jg-speedfit-15esotp-emergency-shut-off-tap-15mm/13133

I am assuming it IS only a drain down valve so anything like this would do and at £4-99 a damn sight cheaper that a "pukka" job!!!!

Pete

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[jaykay]

Ours is a frost valve with the red plunger, and it needs a peg to keep it up....

 

[Terry]

IF It`s 15mm Hard plastic? then look here:-

http://www.screwfix.com/p/jg-speedfit-15esotp-emergency-shut-off-tap-15mm/13133

I am assuming it IS only a drain down valve so anything like this would do and at £4-99 a damn sight cheaper that a "pukka" job!!!!

Pete

Hi Pete the link shows a 15 mm one -almost all caravan M/H stuff is 12 mm and is almost only available through M/H suppliers / outlets --if anyone needs or wants to use 15 mm piping I have a load of 15 to 12 reducers
We find using 15 mm pipes and reducing to 12 mm for pumps etc allows you to use proper taps instead of the expensive M/H versions and cheaper 15mm push fit s for Joints etc
terry