Can't get one sawed through ? - Hole saws leave clean sides and just a bit
over sized (remember knuckles on some pipe) the pipe could be 'cemented' in
with special long crystal gripping cement' - contact a brick mason for that or
maybe the home center if quality.

Martin

Martin Eastburn
@ home at Lions' Lair with our computer lionslair at consolidated dot net
NRA LOH & Endowment Member
NRA Second Amendment Task Force Charter Founder
IHMSA and NRA Metallic Silhouette maker & member


Proctologically Violated©® wrote:
Awl--

Somewhat related to my dust collection follies, I want to put another vent
in the garage proper, thru, you guessed it, an 18" foundation wall. I don't
have too many other choices, except mebbe venting down the main sewer.
Inyone done dat??

Drilling the hole--6" diam, I think--is doable, as I got rotary hammers, a
bottle of vitamins, etc...
I figgered I would hammer-drill a dozen or so 3/8-1/2 holes thru, and chip
out the webs, to give a reasonably round 6" hole.

But I would like to support sed hole, once drilled, to thwart cracks that
might emanate from it, if left unsupported.
Possibilities: cast iron drain pipe, or a big-assed steam pipe or
electrical coupling, or any sturdy large pipe.
If I then cemented it in real good, it would relieve stress/re-support the
wall, and give me a clean opening.

Is there standard stuff used for this? Ideally it would be compatible w/
std ductwork.
Is all this a good idea/bad idea? Wife's not crazy about it.
--
Mr. P.V.'d
formerly Droll Troll



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