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dtrom1984

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Hi there hoping someone can help (I am not an expert at all!). We have a 2 year old house and in the airing cupboard I have noticed a taping sound (started about 2 days ago) - it is like water dripping within the pipe. The tapping is coming from either the black or white part of the pipe as per the photo above. This pipe feeds in to the cylinder as per below:

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Any advice gratefully received!

Thanks.
 
Welcome to the forum, I`ll let the gsr guy`s advise you further.
 
the safety valve will be letting water down the black bit (tundish) into the white bit (dry trap). youll need to get a g3 plumber round to find out why...Welcome anyway..
 
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Yep, the tapping is actually a dripping sound... Chinese water torture ;)
 
If you don't get the tapping noise when the heats off then it's likely to be a pipe expanding and rubbing against some wood,a temporary fix for a few months is lubricate the pipe as it enters the floorboard by squirting some washing up liquid down there
 
Thank you all for your help - this forum is brilliant!

Unfortunately the noise is constant - heating/water on or off. I am thinking of getting a plumber to have a look at it? Could it be anything major?
 
At 2 year old I would think it is nothing too major.
It has to be serviced once a year by a G3 qualified plumber for safety and for units warranty (normally 25year)
The unit has a pressure limiting device, pressure relief valves and an expansion facility of a certain type to prevent ordinary excess pressure. Something is wrong with one or more of these and the G3 person will need to test and make adjustments.
 
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The black part is a tundish, can you see water dripping, if so one of the relief valves is passing either temp on top of the cylinder or relief linked to the inlet reducing valve
 
As said previously, please get in a pro to look at it. And make sure that he has a g3/unvented qualification.
 
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