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UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions. |
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Concrete Block removal
I have removed the leaking, ancient, shower tray from a bathroom to
discover a large concrete block beneath it, ringed with brick. The underlying floor is concrete slab, it's a ground floor. http://picasaweb.google.co.uk/TheOld...eat=directlink I would like to drop the height of the shower pan when I replace it. This is because of the limited clearance above because of the load-bearing lintel above (this was the garage door before an ancient conversion.) There will be just 1850mm between the top of a low-profile shower tray if I put it on the concrete. The alternative is to use a 900mm tray with a 760mm door, and build a false wall for the left hand side. (You can see - line of silicone & marks on the floor tiles - where the imbecile that did the original work built such a false wall - on the the WRONG side!) I'll need about 90mm below the tray for a trap, this will just leave enough to get through the wall to a gully. It's all horribly tight. Now. How do I get the concrete out? I've thought: 1) Hire a breaker - but I don't want to damage the underfloor, or the drain the runs right under. 2) Drill many holes with SDS+ and then take it out in chunks. 3) Drill and cut at the parting line and then drive a chisel in with a sledge. I'm not sure if it will part with the floor though. 4) Some other idea that I'm too thick to have thought of. I'd welcome ideas. (I only have a 115mm Angle Grinder though). R. |
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