Re: opening constricted galvanized pipe
Posted by Deb on March 14, 2004 at 11:44:26:
In response to Re: opening constricted galvanized pipe
: : : This old house has a 10ft piece of 1 1/2" galvanized buried in the cieling and just short of tearing out the drywall is there anything I can try pouring down the drain to open it up.If not is it safe to run a cutting blade thru it and if so what size is best..thanks

: : If this is a drainage line, have it snaked with a power auger. Do NOT use chemicals like Drano. They do not work, they are dangerous to all living things and can cause damage to snaking equipment.
: : Deb
: : The Pipewench

: Thanks For the record this is the upstairs bath sink that had 2 sinks and one was taken out and a washer was installedI know its supposto be a 2 " line but not untill the job was all done.Now Im trying to avoid replacing the 1 1/2 " line.This old house also is wet that right?one vent for the whole house and it comes off the upstairs sink drainage out to the roof

If you are using this (undersized)line for a washer, you could have lint clogging the line. I have found galvanized really hard to snake. You might want to call someone who has done this a time or two.
This is not the real definition of wet venting. It actually sounds as if you have alot of things not vented and/or vented incorrectly. You cannot really vent all fixtures from a continuous vent off a lav. What about the vents for the fixtures on the lower floor? Where is your kitchen sink vent? Vents have to be within certain distances from p-traps (and it's not that far).
I won't give you any lectures, if you promise to plumb this washer in correctly with the correct size pipe. :-)
The Pipewench

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