pipe size

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  #1  
Old 10-11-02, 12:34 PM
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pipe size

relocating some plumbing fixtures in a ranch house with basement. The city inspector said the number of fixtures we have determines the size of pipe needed.

Can anyone tell me how I should go about to determine the size of pipe needed?

Thanks
 
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Old 10-11-02, 03:27 PM
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Cool

Count the individual fixtures that you're planning (toilet, tub, shower, sink, etc.), and ask that inspector what the local code is for each run.
Mike
 
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Old 10-12-02, 07:17 AM
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I already talked to the inspector. Nice guy but he says to do the best you can and not sodder the pipes until he looks at it. Then he will tell me if I should have done it a different way. It appears that he needs to visibly see it before he can tell you what to do.

Is there any information on the Web or a book that explains the code?
 
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Old 10-12-02, 07:28 AM
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Cool

Until Ron (Plumber 2000) or another licensed plumber comes along (I'm not one), you might try http://www.codecheck.com/plumcode.htm
Good Luck!
Mike
 
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Old 10-12-02, 08:11 AM
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Need Info

How many?

Tub/Shower
Lav Sinks
Hose Bibbs
Laudry
Kitchen
Toilets
Bar Sinks
Shower Only
Bidet

You say relocating, you mean moving the fixtures, or are you adding new fixtures with existing fixtures in same place?

What are you reloacting?

Rule of Thumb:

No more the two fixtures, hot and cold combined on one 1/2" line.

If adding more then one fixture, or relocating, pick up the source for the 3/4" Hot and 3/4" Cold lines then reduce to 1/2" when suppling the last two fixtures.

If the house only has 1/2" in the entire house and no 3/4" at all, then pick source up at the 1/2" and increase to 3/4" then at finale two fixtures, decrease in size.
 
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Old 10-12-02, 08:50 AM
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Thanks Plumber 2000. That info helps. Here is a breakdown on what I am doing.

Tub/Shower - 1 same location (got rid of the old and putting in new)
Lav sinks - 2 same location
Hose Bibbs 3 same location
Laundry -1 moving to new location
Kitchen - 2 sinks with 1 dishwasher sane location
Toilets -2 same location

I have 3/4 line coming in to the house and to the hot water heater.

Anyother advice otherwise I'll proceed based on what you already told me.

Thanks.
 
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Old 10-12-02, 08:55 AM
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Size water line to laundry will be 1/2"

Size Waste line to Laundry will be 2"

Size vent to roof for laundry will 1-1/2" unless you live in a snow zone.
 
 

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