Too deep chase for pipes in breeze block

[MJVN]

My plumber did 160 cm, 3 cm deep and 8-10 wide sloping chase (3cm deep) for pipes in 10 cm breeze block. The wall is between my lounge and hall in WC underneath the stairs. I ha no clue about building but I read a lot and was unhappy with what he's done... But it is too late now as it's done...

I asked him to exchange copper pipes to plastic ones and bury them in mortar. Will it strengthen my wall? It is single breeze block wall, plasetered on both sides (blocks are approx 10 cm deep ) in the middle of my house, probably load bearing. House was built in 1998.

I am really worried now

He says people do this and have no worries and I am odd :0(

 

[RonnyRaygun]

The chase is within the limits for a vertical chase specified in Approved Document A, which gives a maximum depth of 1/3 wall thickness for vertical chases and 1/6 wall thickness for horizontal chases.

I don't quite understand why he did a sloping chase, when really they should be either horizontal or vertical. Obviously, with the chase being on a slope, it's slightly outside the limits, but don't worry, it's not going to cause your wall to suddenly fail as it almost certainly has plenty of spare capacity.

 

[freddiemercurystwin]

And why you would prefer plastic over copper is a mystery.

 

[tony1851]

It could come crashing down any minute.

 

[RonnyRaygun]

I am really worried now

He says people do this and have no worries and I am odd :0(

You are odd...