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Old 03-13-2016, 03:48 PM   #1
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Plumbing Design Input


Hi All,

I'm preparing to build my house and have developed the plumbing design and wanted to get some input. I'd appreciate if anyone had input on whether there are any concerns with the design or other things to think of with the design.

Thanks in advance!

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Old 03-13-2016, 05:52 PM   #2
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Re: Plumbing Design Input


Which code is used in your area?
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Old 03-13-2016, 06:00 PM   #3
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Quote:
Originally Posted by theeplumber View Post
which code is used in your area?
irc 2009
upc 2009
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Old 03-14-2016, 09:15 PM   #4
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Re: Plumbing Design Input


You're missing some vents in different areas for UPC.
You mentioned IRC- that has a different plumbing code in it. Is your town combining the 2 codes?
2009 UPC does not allow horizontal wet venting- unless it has admendments
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Old 03-14-2016, 11:37 PM   #5
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Re: Plumbing Design Input


recommend you pipe them in in groups / branches,
but as Mr E has stated depends on your code.
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Old 03-15-2016, 05:06 PM   #6
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Re: Plumbing Design Input


as E mentioned.. need to know which code applies to your area..the lay out you posted has quite a few vent issues.. reguarding horizontal wet venting..and the lack of venting...

Last edited by ben's plumbing; 03-15-2016 at 05:20 PM.
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Old 03-19-2016, 09:57 PM   #7
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Re: Plumbing Design Input


I'm in Franklin County, MO and there website states the following codes are used:

International Building Code 2009
International Residential Code 2009
International Mechanical Code 2009
International Plumbing Code 2009

I have taken the master bath and re-drawn the isometric to gather further input. Please take a look and let me know if this design works. I'm not sure the vent off each fixture is needed in this design. The distance between the SH and WC is 12 feet.

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Old 03-20-2016, 10:10 PM   #8
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Re: Plumbing Design Input


Your under IPC I'll look at it tomorrow after work. IPC DOES NOT allow any dry flat vents for fixtures. For example your shower can vent the toilet but the shower vent must be vertical. Also if you have more then 4 shower heads you need to upsize to three inch the shower trap and drain.

Your half bath you need to vent the toilet with the lavatory in the same bath off the toilet line in that bath.

I hope you get the idea but you cannot drain any fixtures other then wet vent fixtures on a wet vent. Toilet, Bidet, Lavatory sink tub or Shower and a floor drain located in the bathroom. NOTHING ELSE.

Good night and redraw this.

By the way you also cannot use sanitary tees that receive drainage in any other position then vertical.

Add a clean out on the base of your stack.

Last edited by Ghostmaker; 03-20-2016 at 10:15 PM.
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