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View Full Version : Replacment house connection to sewer line


elhamejoseph
Jul 31, 2009, 01:49 PM
The old house was demolished [left a lateral sewer line stump]

When I build my new house ,should its new sewer line be connected directly to the main town sewer line to avoid problems from the very old line[50 year cast iron ] by using this lateral as a guide

Please let me know

massplumber2008
Jul 31, 2009, 03:34 PM
Elhamejoseph:

Best way to tell this will be to have the drain line videotaped by a reputable drain cleaning company and see what they have to say. If nothing else, for example, if say it is 6" you may be able to use the old line as a sleeve for a new line and reduce the costs of digging, etc... ;)

If the run to the city main is a long one it will definitely be worth the cost of investigating this as an alternative.

Let us know if you want to discuss more...

MARK

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hkstroud
Jul 31, 2009, 06:31 PM
Mark,
Note that Elhamejoseph said "sewer line stump".
I would think that that would actually be the sewer tap itself. I'm sure that tap is not the correct term but the memory is short. He was probably required to plug it at the easement line.

massplumber2008
Jul 31, 2009, 06:52 PM
Never heard the term "lateral sewer line stump" Harold?

I was picturing a cast iron pipe capped off from the old house and him wanting to know if it was OK to just connect onto the old pipe..

Is this something else?

Thanks...

MARK

hkstroud
Jul 31, 2009, 07:28 PM
No, I guess I'm picturing it being capped off close to the city sewer. Probably at the property line. Leaving only a few feet of the old lateral, probably where it turns down to the city main. With the additional cost and permits, can't imagine any reason not to reuse. But then I could be all wet.

massplumber2008
Jul 31, 2009, 07:44 PM
Could be 5 foot STUMP (I get it)... makes most sense! And I would definitely use it, too!

Hopefully Joseph returns and can clarify!

Thanks Harold!

Milo Dolezal
Aug 1, 2009, 06:02 AM
In my area: City runs its lateral into each property from main City Sewer. This lateral is usually 6" and runs few feet behind property line. It is capped off.

When house is built, this City lateral is reduced to 4" pipe and continues across your yard to connect your house.

As suggested above, I would definitely snake it and maybe even install a clean out for future use. Video inspection is another great advice. If it is my house, I would excavate and expose old sewer line as close to the property line as possible and then replaced it with new 4" ABS or PVC pipe, not Cast Iron. This would make me to sleep better for the next 30 years or so...