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Over 100,000 Threads 500,000 Plumbing Posts
Plbg.com also known as the PlumbingForum.com. The popular plumbing tips, remodel and advice forum and blog. Ask any toilet, sink, faucet, pump, water quality and plumbing related questions.
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Author:
mikedel28 (NY)
What are the cons of using the blue PE underground water service pipe? I need to replace my water main (old galvanized) and all the water services I have ever done at work were always type K copper.....quite a bit more expensive. I know you need to use the insert with the compression fittings, but I don't know anything about its longevity/durability. I know there were problems with PB pipe, but there is not much of that in my area. Thanks!
-Mike
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Author:
hj
The biggest problem with it is that the i.d. is much smaller than the same size copper tubing. To get the same capacity you need to upgrade to the next larger size.
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Author:
jimmy-o (CA)
The blue is usually polybutylene, no longer used. Polyethylene is usually black.
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Author:
waukeshaplumbing (WI)
i have used Black Poly pipe a few times...for my house it would be my first choice...those compression fittings never leak....and i think the pipe is good for 100+ years
i have no idea what the Blue stuff is?
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Author:
hj
The do make blue PEX, so maybe that is what he is using.
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Author:
mikedel28 (NY)
Thanks for the replies. Yeah, at my supply house in the section of polyethylene rolled pipe, they have both the black (for wells) and the 1" blue CTS(copper tubing size) which is rated at 200 PSI. When they say CTS, does that refer to the ID or OD? Either way, I'm using 1" and all I need to 3/4" so I'll be ok. I guess I should check with the buidling dept. to make sure it is code approved in my city.
-Mike
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Author:
LemonPlumber (FL)
learn the product by astm?use this as the use guide.as said size upward and lock the connections as the newer versions of this tubing requires.the fitting's will be as costly as a short run of copper.where you are test to ground the supply and use ends to ground fault, before you lessor the metal in the service.
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Author:
steve (CA)
CTS is "copper tube size" and refers to the OD. Since the plastic pipe has a thicker wall than copper tubing, the ID will be smaller than copper and you should upsize from what you would normally use, if you were installing copper.
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Author:
hj
ALL piping goes by the o.d. in order to maintain compatibility with fittings.
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Author:
dlh (TX)
All PLUMBING piping that is, since acr piping and fittings go by the i.d.
- - - - - - -
PLUMBERS "Protecting The Health Of The Nation"
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Author:
hj
quote; All PLUMBING piping that is, since acr piping and fittings go by the i.d.
The other way around to be semantically correct. They call it 5/8" (actual o.d.), but we call it 1/2" (nominal i.d.). BUT regardless of the "nominal" i.d. which varies according to the wall thickness, the O.D. IS a constant. ALL cts tubing has the same o.d., and all ips standard pipes also conform to a standard o.d. To be otherwise would make it impossible to combine pipes and fittings without IMMENSE inventories.
Edited 1 times.
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