In a stone and clay crawl space, digging down I hit concrete along the wall?
How far from wall should I go through it so as not to risk the foundation
footing? I'll have to rent some kind of jackhammer to get through it.
On Friday, May 12, 2017 at 3:05:33 PM UTC-4, firstname.lastname@example.org wrote:
Also, this is not high precision NASA work. That footer isn't 18" plus or
minus .001. It can vary back and forth as forms sag or are sloppily frame
d. It's probably 18 inches plus or minus 3. Maybe plus or minus 6 in spot
s. So moving laterally can sometimes help too.
Jackhammer seems to be a brute force method.
Is there no other way, like a vent hole?
How about a concrete drill?
Directional drilling under the footing?
If a contractor said he was gonna use a jackhammer
to poke a 1" hole thru my foundation, I'd go rent
a different contractor.
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