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View the thread, titled "Leaking copper pipe" which is posted in UK Plumbers Forums on UK Plumbers Forums.

Hi - totally new here and really need some advice. I have a pin hole in a 10mm copper wall pipe that supplies a nearby radiator. The hole is about 4cm from the bottom of coving. I have looked at the repair patches but these are for 15mm pipe as are the other fixes available - cannot find it in 10mm. The leak is a dribble with everything on so not pouring out but leaking. I have had 3 plumbers come and look at the leak and the advice has been different on each one and the prices seem too much.

One has said that he will have to access through upstairs floor (bedroom with laminate flooring) cost approx 650-700.

Another has said that he will drain the pipe and solder cost approx 380.

Final one said he can take more wall out either side and replace bit of piping cost approx 420.

None of them can give me an idea of how long it will take so it's difficult to work out the pricing structure.

Should also mention that there is no give in the pipe at all and no gap between wall and pipe so it's difficult to see if the hole has gone all the way through.

Please advise - pictures can be posted.

Thanks Connie
 
You could try ptfe but normally there’s a reason why it’s leaking

Won’t harm stripping the joint once drained to inspect etc
Understood & thank you - I guess I'm not going to know until I open it up what he's left behind. This seems the easiest of the three to tackle but has the worst leak - I don't think he used tape, etc and these were offered to him. I am hoping thats the reason for the leaks. He told me it was not necessary for new valves but my understanding is to use these even on a new fitting.
 
Understood & thank you - I guess I'm not going to know until I open it up what he's left behind. This seems the easiest of the three to tackle but has the worst leak - I don't think he used tape, etc and these were offered to him. I am hoping thats the reason for the leaks. He told me it was not necessary for new valves but my understanding is to use these even on a new fitting.
Hi - after closer inspection and tests I have found the leak near the bottom of the pipe - I have marked it with tape and attached a picture. I'm still testing the nut but I think that's OK. Any advice on next my next move?

Thanks
 

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Get to clean un bent pipe and adapt from there
Just wanted to update - another plumber has been today - one of the leaks was getting worse (don't know why) - he told me that there was no leak on the pipe of the other one - I showed him and he said it I was incorrect. He checked the fittings on all three and tightened them but he did say that it was a wait and see and if they did leak he would have to undo the other guy's work and start again. I agreed and expected this - the original work is shoddy to say the least. The boiler is back on and the guy today did check the tank in the loft - first plumber in 5 who has - he went to number 1 on the list just for that because none of the others could be persuaded to go up in the loft. I checked the pipe earlier today after he left and there is a leak the pipe!! - which only I can see apparently - I even think there might be two nicks on it. I made a video and sent it to today's plumber and he's going to come back in the week. The other two are also still leaking but not as bad as they were. The radiators all seem to be out of sequence to what they were last week - some getting hot and some not but I'm leaving that until I know that everything is leak free - I have bled them again this evening just to release any air so everything else keeps moving. Today's plumber's opinion of the other guy was that the fittings were not tight enough but based on that theory they should be OK now??.

I feel that the only way forward is to strip it all back and start again - I am of course concerned that l end up at square one and the new work also leaks but want an end to it. I've asked so many people to recommend a competent plumber but it seems you guy's are hard to find and I thank everyone that took time out to reply & read this post - you all talked far more sense than the ones I have dealt with in the past month.

Final questions so I'm armed for the next visit.

How would you repair the pipe from the image I sent? - the leak is just above the bend & I still think there might be one on the opposite side. I wanted to know how you guy's would do it once the pipes been cleaned & location of leak/s confirmed. Is it a case of build it back up with a fitting? - this has been done on the other 2 and their leaking including the one without the slanted brass nut "display"

Would you use tape or other on new fittings to ensure a tighter fit?

New copper pipe should always be used? (for new joins)

I did not see the first or second plumber use any tape, one used old copper pipe that was in his bucket and I didn't see them deburr any pipes. When I've done plumbing here I do all 3 and thought it was standard practice and if it is I want to ensure that that these steps are not missed on "the rebuild"

Thank you
 
Just wanted to update - another plumber has been today - one of the leaks was getting worse (don't know why) - he told me that there was no leak on the pipe of the other one - I showed him and he said it I was incorrect. He checked the fittings on all three and tightened them but he did say that it was a wait and see and if they did leak he would have to undo the other guy's work and start again. I agreed and expected this - the original work is shoddy to say the least. The boiler is back on and the guy today did check the tank in the loft - first plumber in 5 who has - he went to number 1 on the list just for that because none of the others could be persuaded to go up in the loft. I checked the pipe earlier today after he left and there is a leak the pipe!! - which only I can see apparently - I even think there might be two nicks on it. I made a video and sent it to today's plumber and he's going to come back in the week. The other two are also still leaking but not as bad as they were. The radiators all seem to be out of sequence to what they were last week - some getting hot and some not but I'm leaving that until I know that everything is leak free - I have bled them again this evening just to release any air so everything else keeps moving. Today's plumber's opinion of the other guy was that the fittings were not tight enough but based on that theory they should be OK now??.

I feel that the only way forward is to strip it all back and start again - I am of course concerned that l end up at square one and the new work also leaks but want an end to it. I've asked so many people to recommend a competent plumber but it seems you guy's are hard to find and I thank everyone that took time out to reply & read this post - you all talked far more sense than the ones I have dealt with in the past month.

Final questions so I'm armed for the next visit.

How would you repair the pipe from the image I sent? - the leak is just above the bend & I still think there might be one on the opposite side. I wanted to know how you guy's would do it once the pipes been cleaned & location of leak/s confirmed. Is it a case of build it back up with a fitting? - this has been done on the other 2 and their leaking including the one without the slanted brass nut "display"

Would you use tape or other on new fittings to ensure a tighter fit?

New copper pipe should always be used? (for new joins)

I did not see the first or second plumber use any tape, one used old copper pipe that was in his bucket and I didn't see them deburr any pipes. When I've done plumbing here I do all 3 and thought it was standard practice and if it is I want to ensure that that these steps are not missed on "the rebuild"

Thank you
Hi Connie,

I've been following this heating saga with interest. First, I'm glad you got the pipework with the hole in it fixed, but unfortunately you are having problems with the rad valves, so here's my 10 pence worth.

Looking at the pictures of the valves that are leaking seem to be 15mm chrome valves with a 15mm x 10mm internal reducer? Correct?

The problem with 10mm copper pipe is that it's quite soft compared to normal 15mm copper pipe, and is easily deformed by an over tightened olive. Once that happens no amount of fiddling with it will cure the leak which seems to be what the plumbers who have attended have done.

In my opinion and what I would do is (if there's enough slack in the pipe work) is cut off the old 10mm olive back to usable clean (remove old paint and muck etc.) pipe and replace it. Some internal reducers have a 'built in olive' therefore you have to replace the whole reducer. With the replacement, use a jointing paste and when it's tightening time, get it finger tight first then just quarter to half turn with a spanner. If it still leaks a quarter turn more which should do the trick.

Hope this helps.
 

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