Boiler pipe leaking, should I be concerned?

[Londoner100]

Here is a pic of my current boiler setup...

https://ibb.co/TqhxKqT

Since I've moved into this property a few months ago, there has been a constant leak from that pipe marked in red in the picture above.

This doesn't affect the boiler pressure as I've not had to top up the pressure since I've lived here.

I'm interested to know...

1. What this pipe is for?
2. Is it a concern?
3. Should it be capped off/re-routed?

 

[Londoner100]

 

[Mister Banks]

It’s the condensate pipe, probably just needs tightening a bit.

 

[terryplumb]

It’s the condensate pipe, probably just needs tightening a bit.

Is it ?? Looks like the copper pipe to the left is indicated with a red line ?

 

[RandomGrinch]

I believe it is from the "Safety Valve Discharge" - so if the water is really leaking from there (and not rising damp!), it may need some further investigation from an RGI - where does the outlet go?

 

[CBW]

Definitely shouldn’t be capped off, it appears to be the safety discharge pipe and is a cause for concern, odd how it’s not losing pressure, unless the filling loop is passing? Could be expansion issue or the valve has operated and not seated correctly - needs an engineer out to look at it. Afaik it should be re-routed correctly to outside.

 

[Londoner100]

Is it ?? Looks like the copper pipe to the left is indicated with a red line ?

Yes exactly, it's the long copper pipe that goes to the floor, with the red markings

 

[Londoner100]

I believe it is from the "Safety Valve Discharge" - so if the water is really leaking from there (and not rising damp!), it may need some further investigation from an RGI - where does the outlet go?

View attachment 300790

Thanks so much for providing this! Yes it does seem to be the safety valve discharge like you say.

It is definitely leaking from the bottom of this pipe and onto the concrete floor in my garage. You can see the damp patch in the pic above. I've tried putting tissues down around the pipe and they are soaked within a few mins.

 

[Londoner100]

Definitely shouldn’t be capped off, it appears to be the safety discharge pipe and is a cause for concern, odd how it’s not losing pressure, unless the filling loop is passing? Could be expansion issue or the valve has operated and not seated correctly - needs an engineer out to look at it. Afaik it should be re-routed correctly to outside.

Sorry one thing I forgot to mention.... I did have a boiler service a few weeks ago just to check everything was working efficiently (which it was). I did raise this to the engineer however he told me it wasn't an issue if I didn't mind the leaking (as it's in the garage and concrete floor so not causing any damage) but I wasn't fully convinced hence wanting to get a second opinion. He didn't really go into too much detail other than it may have been related to the external expansion vessel next to the boiler. In hindsight, I should have asked more questions.

 

[ianmcd]

what pressure does the boiler pressure guage read

 

[denso13]

It may have been related to the external expansion vessel

It probably is but you would also normally lose boiler pressure.

 

[CBW]

I did raise this to the engineer however he told me it wasn't an issue if I didn't mind the leaking (as it's in the garage and concrete floor so not causing any damage) but I wasn't fully convinced hence wanting to get a second opinion. He didn't really go into too much detail other than it may have been related to the external expansion vessel next to the boiler. In hindsight, I should have asked more questions.

I would use a different engineer next time, how can it not be an issue, especially just because it’s leaking onto a concrete floor?

 

[Londoner100]

what pressure does the boiler pressure guage read

Just below 1.5 bar currently. I will monitor this and check in a few days and see if its dropped.

 

[Londoner100]

I would use a different engineer next time, how can it not be an issue, especially just because it’s leaking onto a concrete floor?

What I will do is contact the engineer now and ask him for a more technical explanation.

 

[Londoner100]

He is out on a job at the moment but will give me a call back later. I will report back.

I really appreciate everyone's help on this!