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Domestic Water Piping (commercial)

 
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Old 08-28-2014, 05:44 PM   #1
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Domestic Water Piping (commercial)


What's the best alternative to copper for water pipe
sizes larger than 1"? For hotel installations, etc.
2" - 4" pipe hot & cold water.

Just Wondering....

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Old 08-28-2014, 07:40 PM   #2
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Re: Domestic Water Piping (commercial)


i think pex comes in 2"...maybe larger

i use 1 1/2 pex sometimes on new homes

i didnt think anyone was using copper for anything anymore...i only use it on mixing valves for rigidity

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Old 08-28-2014, 08:31 PM   #3
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Re: Domestic Water Piping (commercial)


Huggy, I was on a commercial job over the summer and they were using 3" and 4" copper for water supply through the building.
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Old 08-28-2014, 08:56 PM   #4
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Re: Domestic Water Piping (commercial)


Specs?
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Old 08-28-2014, 10:58 PM   #5
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Re: Domestic Water Piping (commercial)


Galvanized steel.
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Old 08-28-2014, 11:02 PM   #6
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Re: Domestic Water Piping (commercial)


Depends on the spec and bid documents, as well as the Type of building. Normally pex or whatever is allowed in Type V. By the time you get to a Type I, all you can use is hard metal pipe, which now-a-days means hard drawn type L copper water tube.
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Old 08-29-2014, 07:55 AM   #7
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Re: Domestic Water Piping (commercial)


I've heard a bit about the PPR piping. Green butt-welded plastic. I know nothing about it though, just throwing it out there
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Old 08-29-2014, 08:10 AM   #8
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Re: Domestic Water Piping (commercial)


Quote:
Originally Posted by KillerToiletSpider View Post
Galvanized steel.
South Philly started out with 3/4" galvanized pipe 100+ yrs ago. Today, those same pipes have an ID about 1/4".

Not implying anything about your suggestion, at all. I'm just saying what happens to gal pipe over time.
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Old 08-29-2014, 11:52 AM   #9
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Re: Domestic Water Piping (commercial)


Quote:
Originally Posted by jb4211 View Post
South Philly started out with 3/4" galvanized pipe 100+ yrs ago. Today, those same pipes have an ID about 1/4".

Not implying anything about your suggestion, at all. I'm just saying what happens to gal pipe over time.
I took out a section at my house that was 6 inches long and you couldn't see through it. My lead water service pipe was clean as a whistle.
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Old 08-29-2014, 03:37 PM   #10
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Re: Domestic Water Piping (commercial)


I will probably go with Corzan Sch 80 CPVC for pipe larger than 2".
Flowguard Gold CPVC for 2" and smaller with copper stub outs.
There is really no economical way around it . Thanks
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Old 08-29-2014, 05:34 PM   #11
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Re: Domestic Water Piping (commercial)


Quote:
Originally Posted by jb4211 View Post
South Philly started out with 3/4" galvanized pipe 100+ yrs ago. Today, those same pipes have an ID about 1/4".

Not implying anything about your suggestion, at all. I'm just saying what happens to gal pipe over time.
That is a water quality issue, not a material issue.
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Old 08-29-2014, 05:42 PM   #12
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Re: Domestic Water Piping (commercial)


Quote:
Originally Posted by KillerToiletSpider View Post

That is a water quality issue, not a material issue.
Figures. lol
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Old 08-29-2014, 05:54 PM   #13
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Re: Domestic Water Piping (commercial)


looking for some value engineering....
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Old 08-29-2014, 06:04 PM   #14
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Re: Domestic Water Piping (commercial)


and you can't climb a latter with your hands in your pocket....either.
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Old 08-29-2014, 06:05 PM   #15
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Re: Domestic Water Piping (commercial)


What type of construction is the hotel you're talking about?
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Old 08-30-2014, 03:29 PM   #16
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Re: Domestic Water Piping (commercial)


Quote:
Originally Posted by dan-the-man View Post
Huggy, I was on a commercial job over the summer and they were using 3" and 4" copper for water supply through the building.
my copper turns brown/green because it sits in my van for so long....i only use it for tub/shower mixers....otherwise im 100% pex w/copper stubouts

i used to buy a bundle of 1/2 copper a month, now its a 1/2 bundle a year
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Old 08-30-2014, 03:40 PM   #17
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Re: Domestic Water Piping (commercial)


Quote:
Originally Posted by huggytree View Post
my copper turns brown/green because it sits in my van for so long....i only use it for tub/shower mixers....otherwise im 100% pex w/copper stubouts

i used to buy a bundle of 1/2 copper a month, now its a 1/2 bundle a year
Yeah I hear ya, the little we use is only put in a new mixing valve. I have only used pex a few times but I think it is great.

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