In ,
Mike typed:
On 2016-03-31, Oren wrote:
On Wed, 30 Mar 2016 19:23:10 -0700, Oren wrote:

On Thu, 31 Mar 2016 02:04:46 -0000 (UTC), Mike
wrote:


For the folks that asked, here are some pictures (I hope this
works) of the brick/tile. Also, these tiles are 5" thick.

Mike

http://imgur.com/TkSLKCg

http://imgur.com/Hb475uq

http://imgur.com/2C7ZelN

Thanks. It shouldn't be very difficult to use a bit to get through
those with a circular drill bit.. I can't imagine a cold chisel
would be needed. I'd guess the are fairly soft and not filled with
concrete.

BTW, use a long masonry bit to drill through the wall. It gives you
an alignment method so you can cut the hole from /on either side. So
they match up. And the pipe fits in horizontally and not angled.

Thanks. I bought a hole saw. I couldn't get it to work well, so I
rented a "small bore drill" and a 4"x17" bit or hole saw. These are
the pictures of boring through the tile. I bored a hole that is
12.25" long. In two of the pictures is a small hole. This hole is
from using a mortar bit from the inside. I mueasured right and the
4" diameter hole I bored covers and takes out the hole from the
mortar bit.

Because of the internal structure of the tile I won't try to grind
the tile bigger to accept the steel pipe. I still have some sand
mix concrete that I'll use to stuff the tile voids. When that
concrete is cured I'll start installing the septic system.

Thanks for everyone's help.

Mike

http://imgur.com/KVFXjOA

http://imgur.com/M7Iw7oJ

http://imgur.com/fEmuYrU

http://imgur.com/JxNhEOv

http://imgur.com/MBXriPH

http://imgur.com/4o0QrQa

Wow, you were really serious about doing this and about cutting a perfectly
round hole!

What I wrote before about you not having to worry about structural issues
still holds. That's because it is a continuous solid-but-hollow block wall.
And you were not drilling through a joist etc. So, the whole rest of the
wall provides the support structure. And, if you also fill the block in
around the pipe, there will be way more than enough structural support.