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wwhitney's latest activity
wwhitney
replied to the thread
Question about using a double WYE vertically to connect to stack
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The requirement for the use of a san-tee (and for the vent connection to be at an elevation no more than one pipe diameter below the...
Jun 24, 2025
wwhitney
replied to the thread
Diagram for DWV with two washing machines in series
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A few comments: - The rubber coupling shown in the picture at the lower left is only for use below ground. Above ground you need a...
Jun 24, 2025
wwhitney
replied to the thread
Vent relocation, new drain install
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Yes, IPC 1002.1 says that the fixture outlet to the trap weir (height of water within the trap when it is full) is to be at most 24"...
Jun 18, 2025
wwhitney
reacted to
Reach4's post
in the thread
Replacing 4 inch cast iron 90 from toilet with inlet from tub
with
Like
.
I think you are saying that you have a cast iron hub that accepts a horizontal pipe. That hub is in line with where you picture the...
Jun 16, 2025
wwhitney
replied to the thread
Vent relocation, new drain install
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Yes and yes. You're redoing some of the 3" anyway, so just demoing back to upstream of the dry vent takeoff gives the cleanest final...
Jun 16, 2025
wwhitney
replied to the thread
Vent relocation, new drain install
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The IPC limits a 2" horizontal branch to 2 DFU. A lav is 1 DFU, a tub is 2 DFU, and a shower is 2 DFU. So exiting the wye where the...
Jun 15, 2025
wwhitney
replied to the thread
Vent relocation, new drain install
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Yes, that's fine, if I mentally infer from what you've drawn something plausible in 3D. And definitely do use two different wyes on...
Jun 14, 2025
wwhitney
replied to the thread
Vent relocation, new drain install
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Good. So if you have another lav that can act as a wet vent for some of the fixtures, then that gives you options on the connectivity...
Jun 14, 2025
wwhitney
replied to the thread
Vent relocation, new drain install
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So there's the question of venting these two showers and the tub. The simplest way to do that is use the properly dry vented lav drain...
Jun 14, 2025
wwhitney
replied to the thread
Inspector says No Pex under kitchen Sink?? who is crazy me or her????
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Seems like the onus is on the inspector to cite the section of the California Plumbing Code that is being violated. So ask the...
Jun 12, 2025
wwhitney
replied to the thread
Vent relocation, new drain install
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Sure. Cheers, Wayne
Jun 11, 2025
wwhitney
replied to the thread
Vent relocation, new drain install
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You say joist, but your picture shows floor trusses. There's a big difference, with solid sawn joists you have some limited allowance...
Jun 11, 2025
wwhitney
replied to the thread
Vent relocation, new drain install
.
What you mean by this is not clear. Could you mark up one of the photos (e.g. Microsoft Paint) with lines indicating the joist...
Jun 11, 2025
wwhitney
reacted to
LLPA's post
in the thread
Where Kerdi Board Meets Drywall Waterproofing
with
Like
.
They've been helping me over there and were active last week and now again just yesterday. The basic consensus was I need to prime the...
Jun 11, 2025
wwhitney
replied to the thread
Run out of room for closet flange on stack and what the heck is this mysterious fitting?
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The longer, unshielded rubber couplings are only for use underground. Above ground you need the fully banded type, which as you say are...
Jun 9, 2025
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