Little leak in boiler

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6 Jan 2026
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Noticed a little pool of water underneath my boiler after I had switched the boiler off for a few hours and have now identified the leak's source (see attachments provided). It really is only the tiniest of drips but I don't things to ge any worse. I feel a little embarrassed about getting an engineer round for something like this, however, I don't want to start messing about and potentially make murders worse. Looks like little pipe coming from pump, possibly, bolts needing tightened? No leaking when boiler is on (which will be due to heat expansion, I should imagine, although I am no expert).
 
Apologies, guys. Hadn't noticed attachments failed to fulfil. These are proving too big to enable upload.
 
Last edited:
Posting pictures directly onto this site would be preferable. Not everyone will click onto a link to who knows what.
 
Posting pictures directly onto this site would be preferable. Not everyone will click onto a link to who knows what.
Completely understandable. I have removed now. The files seem to big to enable upload to my thread.
 
Yeah, I was just looking for a way to compress the video I took as this gives best indication. Here is a pic for now.
 

Attachments

  • 20260106_141952.jpg
    20260106_141952.jpg
    238.9 KB · Views: 32
Ok, will do. I was thinking that might be all it could be needing, but, as I am no DIY expert, I was apprehensive. Does slight slackening sometimes happen through use?
 
Ok, will do. I was thinking that might be all it could be needing, but, as I am no DIY expert, I was apprehensive. Does slight slackening sometimes happen through use?

Not slackening of the nut, no, but heat and cold = expansion and contraction of parts, which can cause leaks.
 

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