Re: Installation of Laundry Tub Drain
Posted by e-plumber on December 19, 2003 at 09:32:20:
In response to Re: Installation of Laundry Tub Drain
: A Studor vent will not work, because one problem with the lower sink will be positive pressure from the water coming down the drain and Studor vents cannot relieve positive pressure.

hj, quick question, now you have me thinking...
Believe me, I'm the first one to say, don't use a AAV but...
Wouldn't the positive pressure created in the piping go up the kitchen drain and then into the kitchen vent? I'm taking for granted that the pipe would not be completely full with water when the kitchen sink from above will be used.

: : : I'd like to install a laundry tub drain in my basement. Can I tap into the line that comes down from the kitchen sink above? Right now the only fixture on that stack is the kitchen sink, and it vents directly above at the roof. Pat

: : Pat,
: : You can if you vent the washer.
: : An unvented washer would cause many problems.
: : You can use a Studer vent though.

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