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PostPosted: Tue Aug 21, 2018 12:21 pm 
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Hi all,

I am trying to fix some shelves to victorian brick wall. Have drilled 4 holes so far, so good but I am really stuck with the 5th. I have only been able to drill about 15mm into the wall and the drill wont go further. I have stuck a screw into the hole and given it a tap. There is definitely something solid in there although I am not sure what it is and how to deal with it. My guess is something metalic but what on earth would that be doing in a brick wall??! And why is it in this one spot? Anyone care to guess? It's in a second floor bedroom, about 5ft from the floor. There is a neighbouring house on the other side.

thanks all for any light you can shed on this !


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PostPosted: Tue Aug 21, 2018 12:37 pm 
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is there any electrical sockets switch or item vertically or horizontally from that point ??
is it in a corner near an outside wall

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PostPosted: Tue Aug 21, 2018 12:49 pm 
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big-all wrote:
is there any electrical sockets switch or item vertically or horizontally from that point ??
is it in a corner near an outside wall


No, it's on a wall that has no electrics coming off it, and its in the centre of a wall that separates me from my neighbour.
I will give it another try later. It might be me doing something stupid. :sad:


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PostPosted: Tue Aug 21, 2018 1:13 pm 
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Update: could it be a wall tie ?


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PostPosted: Tue Aug 21, 2018 1:18 pm 
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yes or cable protection

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PostPosted: Tue Aug 21, 2018 1:36 pm 
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It's probably an old fashioned cable conduit - approx 1/2 inch metal conduit (pipe). Or, even more old fashioned, a gas lamp pipe... Solid metal.

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PostPosted: Tue Aug 21, 2018 1:58 pm 
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Or even an iron water pipe if there's a cistern in the loft.



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PostPosted: Tue Aug 21, 2018 2:14 pm 
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sammy.se wrote:
It's probably an old fashioned cable conduit - approx 1/2 inch metal conduit (pipe). Or, even more old fashioned, a gas lamp pipe... Solid metal.

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This is turning into a nightmare... ::b
What's the best way to deal with this ? Drill another hole a few inches from the one I just drilled and hope for the best?


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PostPosted: Tue Aug 21, 2018 2:31 pm 
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yogz wrote:
sammy.se wrote:
It's probably an old fashioned cable conduit - approx 1/2 inch metal conduit (pipe). Or, even more old fashioned, a gas lamp pipe... Solid metal.

Sent from my Nexus 5X using Tapatalk


This is turning into a nightmare... ::b
What's the best way to deal with this ? Drill another hole a few inches from the one I just drilled and hope for the best?
Try just one inch away... These pipes aren't usually huge...

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PostPosted: Tue Aug 21, 2018 3:28 pm 
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yogz wrote:
This is turning into a nightmare... ::b


Welcome to the wonderful, varied, and sometimes challenging world of DIY! :mrgreen:


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PostPosted: Tue Aug 21, 2018 4:00 pm 
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Dave54 wrote:
yogz wrote:
This is turning into a nightmare... ::b


Welcome to the wonderful, varied, and sometimes challenging world of DIY! :mrgreen:


Haha! Who knew putting up shelves would be such a hassle! When it goes right, it is so satisfying though.



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PostPosted: Tue Aug 21, 2018 7:01 pm 
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A while ago after being frustrated at not being able to accurately find a hidden plasterboard joint, I bought some magnets like these https://www.first4magnets.com/circular- ... pull-p2444 and they stuck to the wall at the point where the plasterboard screws were in a line.
The same principle would work on your wall and at least be able to identify if it is a metal conduit and where it goes to ( hopefully!! ).
The magnets are incredibly useful for all sorts of jobs and only take up a tiny area in the toolbox.

Mike

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PostPosted: Tue Aug 21, 2018 7:31 pm 
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so I just drilled another hole 2" to the right of the first one. Same thing! Managed to drill about 20mm and then no further. Is this thing going horizontal? Because I drilled 40cm above it and it was fine. I put a damp q tip into the hole to see what material was coming off and it was a dark grey powder with a weird smell. Kind of like ammonia or when a drain is clogged with hair ?!
Thinking of giving up at this point and getting a professional in...


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PostPosted: Wed Aug 22, 2018 6:42 am 
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I would be curious by now and would probably expose a small area of the brickwork around the hole to see what was behind. You could easily make good with some one patch filler/plaster.

Mike

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PostPosted: Wed Aug 22, 2018 11:28 am 
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Thanks all for your comments. The mystery has been solved. Just thought I'd write about it in case anybody else comes across the same issue, because I suspect it might be a common occurrence in terraced houses.
Our neighbour had a look at the wall. He's done a lot of work on his house so he understands how these houses were built. Turns out it was not iron piping at all but very hard black brick that they used to build the chimney breast. He seemed pretty confident of this so I let him finish drilling the hole. We used the same drill but with his JCB carbide tip drill bits (as mine had melted!). He's stronger than me and just went hell for leather for about 1 min and managed to drill a hole about 10cm deep. I noticed at first there was grey dust coming out, and then red dust.
Anyway, hopefully this is interesting/useful to any newbies out there undertaking a similar project.



For this message the author yogz has received thanks - 4: APDIY, big-all, Job and Knock, London mike 61
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