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Old 03-27-2008, 11:07 AM   #1
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Installing 2nd kitchen sink


I'm about to install a prep sink with disposal unit - 35" countertop & 9" bowl depth. What height should a wall drain line be? It would be easier to send the supply & drain up through the floor. The horizontal 2" drain is approx. 6-8" below the floor & the vent stack is about 12" away. Thanks.

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Old 03-27-2008, 01:04 PM   #2
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Installing 2nd kitchen sink


I set all KS drains at 17" off the floor.

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Old 03-27-2008, 06:17 PM   #3
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Installing 2nd kitchen sink


I set them at 16. So long as you aren't going with an especially deep sink or odd disposal 16 or 17 should be fine.

My measurement of 16 is to the center of the pipe. Rons The Plumbers probably is as well.
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Old 03-27-2008, 07:29 PM   #4
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Installing 2nd kitchen sink


Yes center of tee or pipe stub. Now a laundry tub I'll set at 14 off the floor to center.
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