trauma leak when flushing - Motorhome Forums, Motorhome Discussion, Motorhome Chat

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post #1 of 14 (permalink) Old 12-09-2020, 13:38 Thread Starter
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trauma leak when flushing

hi all I have a 3yr old rollerteam 694. Just noticed a leak when the toilet is flushed under the trauma heater.
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post #2 of 14 (permalink) Old 12-09-2020, 14:39
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Is the heater anywhere near the toilet ? Where is the leak coming from ?

A picture would help since in most cases the toilet flushes directly into the cassette and all the tubing is internal.

Is your toilet flush direct from the main water supply ? If so it would suggest a leak at the pipe T piece where the take off is to the toilet, but when you flush, that would lower the pressure in that pipe, not raise it....

So, sorry, lots of questions as this is intriguing to say the least....

Any typo that I make means the errorists win.

Any comments above are only MY OPINION and should be read as that.

http://www.leslezards.co.uk
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post #3 of 14 (permalink) Old 13-09-2020, 10:10 Thread Starter
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Hi thanks for your response. Now you mention it I am losing pressure and I can hear the pump kick in after a while, so that eliminates the flushing of the toilet. I can't see any leeks around the push fittings ? Is there something under the heater unit that might be leaking ?
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post #4 of 14 (permalink) Old 13-09-2020, 10:15 Thread Starter
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Ps sorry it should have said leaks stupid spellchecker
post #5 of 14 (permalink) Old 13-09-2020, 10:59
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There are numerous connections that you need to check in and around the heater, get flat and have a feel around for where it might be coming from. I have just had a similar leaking problem around the drain valve, sadly it looks as if it is the pressure container as the seal around that is damp - so the bladder inside may have failed.....

If you are not absolutely sure, put a couple of dry sheets of kitchen roll under the joints and check every few minutes to identify the location. Until that has been done, advice about sealing is very hard but most of the valves in the pipe are probably "John Guest speedfit" push together fittings and, as I was taught on here very recently, they are sealed by pulling to tube hard to try to remove it - that locks the fitting in and allows the O ring to seal. They are removable but let's tackle one thing at a time.

Is the leak a large one, or small, my reason for that is test could indicate the size of hole from a weeping joint (small) to a massive leak caused by a split heater due to freezing...... the latter us not a cheap repair....

Sadly, your picture will not open for me - probably due to the internet connection here in SW France right by the Bay of Biscay

Any typo that I make means the errorists win.

Any comments above are only MY OPINION and should be read as that.

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Last edited by Penquin; 13-09-2020 at 11:04.
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post #6 of 14 (permalink) Old 13-09-2020, 11:38 Thread Starter
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Thanks thats great advice, enjoy your time away
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post #7 of 14 (permalink) Old 13-09-2020, 11:51
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Let me know how you get on, sorting out such things is always a challenge, but there has to be an answer (like a leak) somewhere, it's just a case of finding where it is and how to sort it.

MHF is very good at offering advice yo sort things - that is why I joined many years ago in order to solve a problem. .the range of knowledge and experience on here is astounding.

It's just a case if asking the (right) question....

Any typo that I make means the errorists win.

Any comments above are only MY OPINION and should be read as that.

http://www.leslezards.co.uk
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post #8 of 14 (permalink) Old 13-09-2020, 17:03
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In your picture the black rectangular item with the two blue hoses connected and the blue triangular part on top is the frost protection valve, these are renowned for leaking.
Can't actually make out from your picture which one of the two versions it is, there will be a hole through the floor with a drain pipe attached, is this where your leak is coming from?
Maybe the frost protection valve is leaking or has not been properly re set, have a look in your Truma manual to see how to re set it.

John
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post #9 of 14 (permalink) Old 14-09-2020, 12:47 Thread Starter
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Hi the leak is under the trauma unit.i am not getting anything from the pipe underneath the van. I am taking it in to the dealers tomorrow so I will let you know what they say ? Thanks for your help.
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post #10 of 14 (permalink) Old 14-09-2020, 13:04
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Quote:
Originally Posted by [email protected] View Post
Hi the leak is under the trauma unit.i am not getting anything from the pipe underneath the van. I am taking it in to the dealers tomorrow so I will let you know what they say ? Thanks for your help.
There is a valve at the top which is on the right hand front side, it is on an elbow and connected to a supposedly see-through pipe - it serves as a pressure release valve if the unit is effectively too full. Easy and fairly cheap to replace.... c/w a new Truma...

Any typo that I make means the errorists win.

Any comments above are only MY OPINION and should be read as that.

http://www.leslezards.co.uk
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