re: Adding new sewer drain concrete slab house

quote:

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Is there a standard practice for how this is done retroactively through foundation? Do you drill down and then horizontally out through beam that is approx level (higher with grading) with drain?

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For me, lots of planning, layout, and area prep. Then I grab my SDS+ and SDS Max hammer drills, gas-powered concrete demo saw, and probably a pair of angle grinders with cutting/grinding wheels for both metal and concrete, some hand tools for digging/prying, then curse myself for the mess I am going to have to clean up. Plumbing in the water lines, sewer connection, clean out, and vent pipe, proper backfilling, then patching the concrete will be a lot of work too. Assuming with the older house you aren't dealing with post-tensioning but there might be rebar you could run into which is always fun.


Yeah, that's not a job I'd want to tackle unless I had a few days without interruption and some good beer waiting in the evenings.