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Old 02-08-2008, 10:38 AM   #1
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Is this too many branches for one pipe?


I am totally renovating my basement bathroom; There is one- 1/2" cold water pipe that goes to the sink, shower and toilet. I would like to run the first floor bathroom toilet to this same pipe. The reason is to sheetrock directly against the ceiling joist in the basement bathroom. Currently the first floor bathroom toilet line is hanging down from the basement bathroom ceiling. It would be easiest to tie into the 1/2" cold water line in the basement bathroom to the first floor bathroom toilet. I hope this makes sense. In other words; a shower, sink and two toilets on one 1/2" pipe, the presssure is very good. Thank you for your advice.

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Old 02-08-2008, 11:22 AM   #2
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Is this too many branches for one pipe?


You will probably get away with it. It will be rare that both toilets were flushed and therefore refilling at the same time you are also taking a shower.

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Old 02-08-2008, 12:16 PM   #3
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Is this too many branches for one pipe?


I think there is only min considerations for supplies lines... more difficult considerations when it comes to drain pipes....
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Old 02-08-2008, 01:36 PM   #4
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Is this too many branches for one pipe?


How much pressure do you have?
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Old 02-08-2008, 02:01 PM   #5
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Is this too many branches for one pipe?


I have approximately 60 PSI I think.

Last edited by teachtech; 02-08-2008 at 02:24 PM.
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Old 02-08-2008, 04:22 PM   #6
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Is this too many branches for one pipe?


The answer is too many fixtures on that 1/2" line.
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Old 02-08-2008, 04:52 PM   #7
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Is this too many branches for one pipe?


By code a half inch line can have a maximum of two fixtures. I also try not to let a shower share a half inch line with any fixture not in the same bathroom. The last part isn't code, just something I like to do.
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Old 02-08-2008, 08:52 PM   #8
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Is this too many branches for one pipe?


I will do it the right way, thank you for the advice!
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Old 02-08-2008, 10:36 PM   #9
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Is this too many branches for one pipe?


I always run 3/4" hot & cold main lines then 1/2" to last fixture on dead end run with 1/2" branch lines to the other fixtures along the way.
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Old 02-11-2008, 10:10 PM   #10
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Is this too many branches for one pipe?


you could run as much as you want off the 1/2" pipe just don't use all of them at one time.the whole house is 1/2" after the meter just don't size up even if you start out into the yard keep it 1/2"..toilets only draw on the water when you flush them so that leaves the sink and showers..if somebody is in the shower and you turn the sink cold on you'll hear it...or them.
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Old 02-11-2008, 10:23 PM   #11
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Is this too many branches for one pipe?


Do it right or not at all.

Biggles not come on here telling others doing things the wrong way is ok.

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