Chasing Pipes in Walls

Author
Discussion

ParanoidAndroid

Original Poster:

1,359 posts

284 months

Sunday 27th February 2011
quotequote all
Hi guys,

Just a quick question. Currently gutting the bathroom and putting a new one in. Will need to chase some pipework into the walls for the wall mounted radiator/towel rail and wall mounted bath controls etc.

Question is what should I put the pipes in to stop the copper reacting with the mortar, read somewhere that you can wrap them in tape but wondered if there is a preferred method? Obviously the pipes need to be able to expand/contract slightly with the heat.

Cheers,
Graham

Gingerbread Man

9,171 posts

214 months

Sunday 27th February 2011
quotequote all
Use plastic in the wall.

anonymous-user

55 months

Sunday 27th February 2011
quotequote all
Is it realy that wrong to bury copper pipes in mortar? My house was built in 1970 & all the ground floor pipes are buried in the screed, under parquet flooring. No leaks in 40+ years....

DrDeAtH

3,593 posts

233 months

Sunday 27th February 2011
quotequote all
wrap copper in denso tape if burying in concrete/plaster.

it has been known for people to use insulation tape, but a few good layers.

the problem with using plastic pipe is that you will need either a bulky pushfit elbow or compression fitting in the wall.

mattdaniels

7,353 posts

283 months

Monday 28th February 2011
quotequote all
Having seen what a mess push fit connections can make of a lounge following the cold weather before Christmas, I'd avoid them.

hairyben

8,516 posts

184 months

Monday 28th February 2011
quotequote all
mattdaniels said:
Having seen what a mess push fit connections can make of a lounge following the cold weather before Christmas, I'd avoid them.
If pipes freeze, they can push just about anything apart, including soldered, compression joints etc. Ice is very powerfull.

Simpo Two

85,735 posts

266 months

Monday 28th February 2011
quotequote all
hairyben said:
If pipes freeze, they can push just about anything apart, including soldered, compression joints etc.
Yes, the ice this winter broke a solder joint outside. It was at the end of a 10' run so the linear expansion would have been a lot, and muggins didn't turn off/drain the supply in time.

B17NNS

18,506 posts

248 months

Monday 28th February 2011
quotequote all
Gaffer tape (rape tape hehe) would be fine.

mattdaniels

7,353 posts

283 months

Wednesday 2nd March 2011
quotequote all
hairyben said:
If pipes freeze, they can push just about anything apart, including soldered, compression joints etc. Ice is very powerfull.
The pipes weren't frozen though. Push fit connectors are the work of the devil and should not be buried in walls.

CedGTV

2,538 posts

255 months

Wednesday 2nd March 2011
quotequote all
As mentioned above, Denso tape to wrap the pipe before burying in mortar etc etc.

It would help to be wearing a pair of latex gloves when applying it as well as the grease on the tape is like st to blanket......sticky as....