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Replacing old main drain pipe Mail Man Bob 08-11-2007
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Posted by J.A. Michel on August 11, 2007, 6:50 pm

> Old drain is at least 45 years old and has broken under a concrete slab
> and
> roots get in and clog it up every 6 months. One estimate was for $3K,
> which includes breaking a concrete patio, installing new drain pipe and
> replacing patio.
> There are 2 alternates that I thought about doing instead to keep from
> breaking up the concrete....
> 1 - Slide a PVC pipe inside the old terra cotta pipe. Advantage is lower
> cost, but it also makes the pipe diameter smaller.
> 2 - Re-route a new drain pipe around the patio. This would be my first
> choice except that the only way is to go out 90 degrees from the original,
> which means either two 90 degrees bends -- or 45 degrees if that is
> available.
> I posted a sketch the following newsgroup - the closest one I could find
> to
> plumbing...
> alt.binaries.pictures.woodworking
> If anyone has experience with this kind of situation, I would appreciate
> hearing a few words.
> Thanks!
The 4" PVC line exiting my house has a pair of 45's on it. No problem with
doing it that way, so long as you observe proper slope and whatnot.



Posted by Peter Bogiatzidis on August 12, 2007, 10:24 am
Mail Man Bob,

As I posted in my reply in abpw, take a look at www.maxlinerusa.com.

Hope this helps.

Peter.

> Old drain is at least 45 years old and has broken under a concrete slab
> and
> roots get in and clog it up every 6 months. One estimate was for $3K,
> which includes breaking a concrete patio, installing new drain pipe and
> replacing patio.
> There are 2 alternates that I thought about doing instead to keep from
> breaking up the concrete....
> 1 - Slide a PVC pipe inside the old terra cotta pipe. Advantage is lower
> cost, but it also makes the pipe diameter smaller.
> 2 - Re-route a new drain pipe around the patio. This would be my first
> choice except that the only way is to go out 90 degrees from the original,
> which means either two 90 degrees bends -- or 45 degrees if that is
> available.
> I posted a sketch the following newsgroup - the closest one I could find
> to
> plumbing...
> alt.binaries.pictures.woodworking
> If anyone has experience with this kind of situation, I would appreciate
> hearing a few words.
> Thanks!
> Bob
>



Posted by Mail Man Bob on August 13, 2007, 6:21 pm
Thanks. I did -- looks like a clever idea, but way too complicated or
expensive for what I'm doing. I'll look for a flexible thin wall pvc or
something similar to that for this short run.

> Mail Man Bob,
> As I posted in my reply in abpw, take a look at www.maxlinerusa.com.
> Hope this helps.
> Peter.
> > Old drain is at least 45 years old and has broken under a concrete slab
> > and
> > roots get in and clog it up every 6 months. One estimate was for $3K,
> > which includes breaking a concrete patio, installing new drain pipe and
> > replacing patio.
> > There are 2 alternates that I thought about doing instead to keep from
> > breaking up the concrete....
> > 1 - Slide a PVC pipe inside the old terra cotta pipe. Advantage is
lower
> > cost, but it also makes the pipe diameter smaller.
> > 2 - Re-route a new drain pipe around the patio. This would be my first
> > choice except that the only way is to go out 90 degrees from the
original,
> > which means either two 90 degrees bends -- or 45 degrees if that is
> > available.
> > I posted a sketch the following newsgroup - the closest one I could find
> > to
> > plumbing...
> > alt.binaries.pictures.woodworking
> > If anyone has experience with this kind of situation, I would appreciate
> > hearing a few words.
> > Thanks!
> > Bob



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