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Old 07-27-2010, 08:51 AM   #16
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Quote:
Originally Posted by rjniles View Post
You are kidding about this, aren't you
NO, I'm NOT kidding.... what's wrong with it now?
I need to have everything laid out properly, with the correct size materials in the correct positions. If what I show is wrong, please tell me! I'm more of a magic box woodworker, not a plumber...lol But it needs to be right!

Thanks

DM

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Old 07-27-2010, 10:58 AM   #17
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Is this closer? I plan on 1" for the 2 or 3 sinks, as I have a bunch of that and 2". Then 2" for the bathtub and finish drain going into the soil stack for all sinks to drain to as well. This is just like a big, fun jigsaw puzzle! *whoopie*

Thanks!

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Old 07-27-2010, 11:05 AM   #18
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Reading, reading and reading more, I'm slowly understanding. The slow rise I need for the vent pipe, tee'd in every few feet to prevent siphoning, then on to the tub drain/vent! The first few feet from the kitchen sink is acceptable for a 4 way tee on the vent to tee into the drain below, then 45'ed into the wall and up to the attic to join it's friends....
(Thanks to gma2rjc for this link: http://www.inspectapedia.com/plumbin...efinitions.htm VERY helpful to me!)

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Old 07-27-2010, 11:42 AM   #19
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Now... if the previous picture is now correct, my next pieces should look like these I believe. About 2 and a half feet from the sink is an open wall bay to shoot the vent pipe straight up. (45's to go behind the drywall behind the cabinets and up to the attic.) There, the vents will join the tub vent and other sink vent to end up through the roof. The second picture into-wall2.jpg will transition to a 2" drain when it goes through the floor at the bottom tee.

Am I right so far?

DM
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Old 07-27-2010, 12:03 PM   #20
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The fittings in your last picture are not DWV fittings but are instead regular Sch. 40 fittings. No inspector will pas them.
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Old 07-27-2010, 12:31 PM   #21
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OK then.... am I supposed to be making all this from black ABS sch40?
Confused again.... as usual.

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Old 07-27-2010, 12:34 PM   #22
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And if so... what is this stuff FOR if not drains and vents, etc.?

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Old 07-27-2010, 12:37 PM   #23
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Those fittings are for pressure applications like water supply lines. DWV fittings have sweeps in them to direct the waste flow toward the drain.
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Old 07-27-2010, 12:53 PM   #24
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So... the second picture should look like this instead?
Makes more sense, yup....
What's wrong with the first pic? Anything?

Thanks for taking the time to help!

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Old 07-27-2010, 03:56 PM   #25
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That long sweep sanitary tee is fine but the tee above it and the elbows above that are not DWV fittings.

BTW, most areas will accept either ABS or PVC fittings as long as they are used properly and any interconnection of them uses the proper methods and cements. It seems to be a regional thing, either ABS is preferred or PVC is preferred.
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Old 07-27-2010, 04:20 PM   #26
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OK then, back to the store for store credit on unusable pieces, get right pieces.... lol

So then, THIS picture should be right for under the kitchen sink, yes?

Thanks!

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Old 07-27-2010, 06:49 PM   #27
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If that is 1 1/2" drain line, it is wrong. My region specifies 2" for the kitchen sink drain, 1 1/2" on the trap and trap arm. Kitchen sinks also need a cleanout. don't use the slip joint tee either, the inspector won't like it. Use a 2x11/2x11/2 sanitary tee. Glue a trap adpt into the branch for the p trap.
Also, why are you running the drain horizontal and then elbowing up vertically and then elbowing back to vent? Can you run a 2" vertical drain and branch horizontal w/ a 1 1/2" trap arm to the sink? The 1 1/2" vent will be off the top of the tee. Try to elimanate as many fittings as possible. It speeds up assembly time and saves money on parts

Also, drive around some housing projects in your town. Are they using DWV PVC or ABS?
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Old 07-27-2010, 07:43 PM   #28
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Not sure I understand the question, but the top right corner is the vent and the bottom is the drain. Both need to travel along the wall above the floor behind the cabinets to the wall. The sink is centered at the window, so the vent cannot go straight up, so I'll patch in with the right stuff and run the vent up through a wall bay to the attic, then the (2" I guess) drain under the floor to the exit. Does that make sense? If so, I'm glad ONE of us understands! LOL

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Old 07-27-2010, 08:46 PM   #29
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Just to restate what the eplumber said: the last slip joint fitting should be the horizontal back from the P trap. That piece should go into a trap adapter (slip join) glued into a DWV sanitary tee. Whether the drain must be 2" or 1 1/2 depends on local code. Everything past that sanitary tee (Up or down) must be glued DWV fittings. Make sure you use the purple primer so the inspector can see it.
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Old 07-28-2010, 07:16 AM   #30
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Thanks!....
I took a pic of how I have it setup now, but the 'manage attachments' button is missing every time I try to upload it. Will continue to try to post it. I do believe it's all correct now. Except maybe the 1" drain. Can anyone cite code regs where it stipulates drain size for kitchen?
(Kalamazoo county, Mich.)

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