Best way to create hole in concrete floor for water pipe

[WabbitPoo]

I am bringing in a blue pipe for my new kitchen. Is there a "good" and a "bad" way to create a hole in the concrete floor to feed the pipe in and up? I assume a fairly big hole is needed in order to excavate down and then thru?

Also, what distance from the inner wall to the pipe and stop cock would you suggest I end up with?

 

[ReggieStrant]

http://www.youtube.com/watch?v=SuniKsBxZ10

Okay, not the neatest, but I can claim this is the best reply you've had - and ineeed one more than my question received, so that's gotta count for something, right?

 

[r896neo]

The easiest method is a stihl saw as it'll cut just fractionally under 4'' which your floor probably is. But it's not an option really if the house is occupied in which case stitch drilling is probably the best bet.

If you need to drill down through the wall from inside you will need to make it pretty large hole, like 1ft dia not so much to dig it out as trying to get a hole out through the wall or possibly even through the footings depending on depth.

Obviously it is much easier to have a deep trench outside from which you can drill/ break upwards through but you'll have to make a call as to which is better for your situation.

As for the pipe distance off the wall that will be the very least of your worries becuase as you realised the hole will need to be pretty big in order to get the stuff out.

 

[^woody^]

Hammer and chisel

Wrap the pipe in foam insulation in the floor, and aim to get it tight in a corner or against a wall - it will be about 25mm off, or a bit more if allowing for skirting

 

[WabbitPoo]

thanks a lot

 

[WabbitPoo]

All done and dusted now. Ended up with plenty of access outside, so not too big a hole inside. Thanks for the guidance.

 

[JohnD]

how did you do it?