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Old 08-25-2008, 11:19 PM   #1
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Default Sink rough-in

At what height do you guys rough sinks in at? In the kitchen I rough-in at 14.5" AFF and when i keep my 10" from the bottom of the sink bowls, i have to 45 down out of the trap to the rough in stub out. (i 45 down to it and meet it with another 45 in order to NOT S trap it which is not permissible in ky). . . But My point is, a 14.5" rough in for a KS doesn't sound really feasable when you already know the H/O isn't going to have a disposal. .

What's your opinion?
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Old 08-25-2008, 11:36 PM   #2
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Originally Posted by I'mYourTourGuide View Post
At what height do you guys rough sinks in at? In the kitchen I rough-in at 14.5" AFF and when i keep my 10" from the bottom of the sink bowls, i have to 45 down out of the trap to the rough in stub out. (i 45 down to it and meet it with another 45 in order to NOT S trap it which is not permissible in ky). . . But My point is, a 14.5" rough in for a KS doesn't sound really feasable when you already know the H/O isn't going to have a disposal. .

What's your opinion?
We rough all kitchen sink wastes at 12" AFF. That is all three stub outs, not just the disposal stub.
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Old 08-25-2008, 11:42 PM   #3
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We rough all kitchen sink wastes at 12" AFF. That is all three stub outs, not just the disposal stub.
That's crazy isn't it? Or I at least think so. . your trap would be on the floor to keep a horizontal trap arm. . . I'd rather use a wye (with the 45 inlet turned up, come out of the trap with another 45 and pipe down to the wye and then put a 1.5" bushing with a plug in the bottom of the wye for a c/o)
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Old 08-26-2008, 12:18 AM   #4
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That's crazy isn't it? Or I at least think so. . your trap would be on the floor to keep a horizontal trap arm. . . I'd rather use a wye (with the 45 inlet turned up, come out of the trap with another 45 and pipe down to the wye and then put a 1.5" bushing with a plug in the bottom of the wye for a c/o)
Our code requires every fixture must have it's own vented trap.
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Old 08-26-2008, 12:24 AM   #5
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That's crazy isn't it? Or I at least think so. . your trap would be on the floor to keep a horizontal trap arm. . . I'd rather use a wye (with the 45 inlet turned up, come out of the trap with another 45 and pipe down to the wye and then put a 1.5" bushing with a plug in the bottom of the wye for a c/o)
I am not following this description, but it sounds illegal.
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Old 08-26-2008, 02:30 AM   #6
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all our code states is no s traps or floor traps, so it's permissible. . .anyhow, how far are you guys allowed down from the bottom of the bowl to the dip in the trap?
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Old 08-26-2008, 06:55 PM   #7
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As far as need be. I rough mine in at 12 to 14 for sink
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Old 08-26-2008, 08:16 PM   #8
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The standpipe can only be 24'' but a laundry can be 48" in length.

I did my RI's at 19" AFF.

In Christ,

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Old 09-17-2008, 11:48 PM   #9
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Lavs at 19" pedestals at 21" kitchen sinks at 14" and never had a problem.
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