Hi, I would appreciate advice on the best way to cut a 30cm deep channel into the concrete floor of my kitchen bearing in mind that being internal area the issue of dust needs to be kept to a minimum. The channel is to enable us to lay a soil pipe to install a downstairs toilet. It's not viable to take pipe via any other route. Thanks
stitch drill and bolster - if you are a glutton for punishment and have a few days spare, but I suspect you will soon be looking to hire a sthil saw to get it done in an hour cleaning is easy, chipping out a channel isn't so
whichever method you opt for make sure you reinstate the DPC (if you find one) when you backfill - and don't forget to correctly prepare the ground beneath the plumbing
Hi Sean, thanks for your reply, I won't don't worry. Do you mean pea gravel under the pipe then DPC added and sealed to existing DPC then soil pipe added? Thanks Lisa
hi, I intend doing a small test hole to see how deep the concrete,DPC etc but I doubt it would come up in a slab? Is this likely? Thanks Lisa
yep something along those lines, just don't lay the plumbing directly onto the subsoil - I doubt you'll be able to get a contiguous joint to the existing DPC as it will be under the uncut slab, just laying some 1200 guage membrane on top of the backfill and under whatever you use to reinstate the slab should suffice - but there's a fair chance you'll just have a thick strong slab with no DPC is there really no other option other than excavation ?
Not that we can think of as toilet is to be under stairs in middle of house and drains are at rear of property. Don't want to have a soil pipe around two exterior walls which would be our only other option. Any ideas greatly appreciated and considered of course. thanks Lisa
Don't want to use one of those. The noise they make will echo as we have quite a void under all rooms other than kitchen and where we want to put the toilet (partly under stairs) thought it best to do the job properly.
If you hire a sthil saw get one with a water connector on it, this can be connected to a hose pipe, this will of course make a wet slurry on the floor, but this will be a lot easier to clean up than dust all over the room/house will be.
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