Back Boxes in Thermolites

[r.rain]

Hello All

I need to move a double electric socket about 2 ft. The only problem I foresee is that the area where I want to move the back box too is thermolite bricks which have been laid to block up a door way. The block work is not particularly solid due to the difficuly in laying these things in a small doorway and my crap brick laying skills. I'm worried too much hacking will upset them. What is the best way to fit this back box?

Any advice for this job appreciated as usual Thanks in advance!

Richard

[Christian McArdle]

Thermalite is so light and soft, you could dig it the chase with a teaspoon. I would probably use a large drill bit, a just drill holes in a grid pattern to the correct depth and vacuum out the results. If doing this causes the blocks to shift, then they need to be relaid anyway.

Christian.

[Lurch]

On 7 Dec 2004 09:00:31 -0800, [e-mail] strung together this:

Have you ever tried knocking a box in thermalite? You could scratch it out with your fingernail.

[simon beer]

Should have thought you could hack these blocks out with a Stanley knife once you removed the outer coat of plaster, or an old chisel.

[Rick Dipper]

A screwdriver should do the trick, just dig away like you were doing a jail break ...... It won't take long

Rick

[Colin Wilson]

Expanding foam will probably get you a better grip in this crap than trying to use screws :-} (i`ve had the same problem before)

[Andrew Gabriel]

Plaster or pollyfilla works well too, much better than screws.