sink against brick wall

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Old 07-01-03, 07:21 AM
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sink against brick wall

I am installing a new kitchen sink againat a brick wall. The vent is 4 feet away, but because of the brick I can't run the drain through the wall. Can I:
1) After the trap under the sink, go staight down into the basement and then head horizontally the 4 feet to the vent.

or

2) Place the trap itself in the basement just under the kitchen foor and head horizontal to the vent.

3) I also have to include the sink/washing vent into this run. Can I simply attach that vent a few inches above where the sink drain connects to teh vent in the basement. There is no other drains above the sink. How much vertical distance on the main vent has to be between the sink drain and washer vent .
 
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Old 07-01-03, 11:27 PM
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Cool

It is probably going to take one the pro plumbers here (I'm not one) to give you the best answer, but I wouldn't create an S trap situation (your solution 1).
I would look into putting an air admittance valve after the trap under the sink, such as a Studor vent. Slope all drain lines 1/4" per linear foot toward the main drain line.
http://www.studor.com/
Good Luck!
 
  #3  
Old 07-02-03, 06:32 AM
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more thoughts

It occurs to me that Option 1 would allow sewer gas to be trapped in the 2 feet or so of vertical pipe below the trap.

Is Option 2 up to code? The trap would be accessible from the basement.

And in the main soil stack is there a minimum distance between a vent line over a drain line. The vent line is a revent from the basement sink and the drain line is the kitchen sink as decribed above.
 
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