I need to run my laundry water outside of the house for a while (until I can get the sewer line there fixed). So I want to open a hole in my CBS exterior wall so I can stick out a PVC drain pipe to discharge the laundry water.
What is the best way to open such a hole? I think I need a 3" pipe, and I have a hammer drill. I don't think for conrete wall there is a hole saw, so my only choice is to chip one open?
Thanks in advance,
O