Hello,
With the time off that accompanies the holidays I'm looking to get a
couple of projects done. First on my list is to properly vent my
clothes dryer. I thinking of possibly running an additional length of
hose and filter to my garage to help warm it a little (at least when the
dryer is running!). My question is: what's the best way to drill a 4"
hole through concrete? Can it be done w/ a hammer drill + lots of
smaller holes + chisel? The house was built in 1920 so it's that old
concrete foundation where there top layer easily crumbles. Or is it
best not to drill a 4" hole through this kind of concrete? Or if I do
drill a hole that big, should I reinforce it with something?
Thanks,
Justin
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