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Old 03-21-2011, 02:06 PM   #1
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Moving the sink from one end of the kitchen to the other?


Iwill have NO problem moving the 1/2"copper water lines fromone end to the other,(read as I know how and can solder) my question is the drain? How much pitch do I need. There shouldn't be any issues because the laundry/hallway next to garage is directly underneath kitchen and all open. I am just unsure how much pitch I need for proper drain? And IF I am oversimplyifying this PLEASE let me know! If I over looked something or whatever! THANK YOU

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Old 03-21-2011, 03:52 PM   #2
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Moving the sink from one end of the kitchen to the other?


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Originally Posted by Evil Scotsman View Post
Iwill have NO problem moving the 1/2"copper water lines fromone end to the other,(read as I know how and can solder) my question is the drain? How much pitch do I need. There shouldn't be any issues because the laundry/hallway next to garage is directly underneath kitchen and all open. I am just unsure how much pitch I need for proper drain? And IF I am oversimplyifying this PLEASE let me know! If I over looked something or whatever! THANK YOU
My understanding is that the ideal pitch for a waste drain is 1/4" per foot. For a toilet, 1/4" per foot allows moving the solid waste down the drain properly. Too much or too little pitch can impede movement of solid waste. For a kitchen, I would also use 1/4" per foot since a garbage disposal might be installed and I would want that waste, albeit much smaller than toilet waste, to move along nicely.

HRG

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Old 03-21-2011, 11:56 PM   #3
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Moving the sink from one end of the kitchen to the other?


A drain line for a kitchen sink should be 2" dia. graded @1/4" per ft. with a clean out installed at its upper terminal. The trap arm can be 1 1/2" and the p trap must be vented.
If you move the drain across the room, how will you vent it?
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