j...@myplace.com wrote:
> On Wed, 11 Jan 2012 15:17:41 -0800, Steve Barker
> <
ichase...@notgmail.com> wrote:
>
>>>
>>> First try tracing it with a simple magnetic compass. If that is not
>>> as effective as you need, rent a regular plumbers device. You could
>>> also borrow (or buy) a metal detector which will do the job.
>>>
>>> Joe
>>
>> metal detector also find that rebar in the floor.
>
> Basement floors dont usually have rebar. A "quality" metal detector
> would probably find a cast iron pipe, but I highly doubt it's cast
> iron under the floor. Normally the cast iron stack enters the floor,
> but under that are clay tile pipes or in newer buildings, plastic
> pipe.
>
> Normally there is a cleanout where the sewer line leaves the building.
> Then there is a main stack in the building, and possibly one or more
> other entry points for drains. Another thing is a basement floor
> drain. The pipes are normally a straight line from the main stack to
> the cleanout at the exit from the building, or from the floor drain to
> that cleanout. Unless the builder was drunk, or the home has has
> major renovations. the run of the pipes should be pretty obvious.
Thanks. I haven't had a chance yet to go to the property and follow up on
some of the other suggestions. As far as figuring out where the underground
sewer "should" be, or probably is, that is a little more complicated in this
property. In most cases, I would be able to do what you said -- look for a
curb vent, look for where the stack is, look fo a cleanout on the outside of
the house, etc. However, this is a huge twin home (semi-detached, meaning
two houses attched side-by-side) that was moved to that location a long time
ago. The front yard is a hill and there is no cleanout there. Near the
sidewalk and curb I have not been able to find any curb vent anywhere --
there may be one, but I haven't been able to find it yet, and I have been
looking -- so I can't guess from there where the sewer line goes into the
house. The only stack in the house for the one bathroom that exists is in
one back corner of the house, near the party wall between the two houses.
Then the sewer line runs at about a 45 degree angle to a floor drain. The
question then becomes, "where does the sewer line go from there" -- either
straight out through the front of the house toward the street, or continue
at an angle and out through the side of the house and then to the street, or
something like that.
Other old houses in the area of similar age have cast iron sewr lines going
out to the street. Whether this one has that or has terra cotta I don't
know.