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  • tonynace
    started a topic Straightening Pex

    Straightening Pex

    I'm plumbing my house with Pex. This is the first time I've used this material, and after buying expensive fittings and trying to wrestle the material to go straight, I'm kind of wishing I'd gone with copper. I'm not sure if it would have been more expensive, if at all, by the time it's all said and done. But since I have all the materials, I might as well finish with it. My question is, is there a way to straighten this stuff, other than trying to bend it by hand. That works for a while, but the stuff is pretty hard to bend if you have a short piece or at the ends in 3/4" and it always seems to want to return to its coiled state. Is there a way to heat it or something to get it to lie straight? It is not so bad along the joists where I can put in supports, but in areas where it can't be supported readily, like going down to my water softener, it does not look too good.

  • thiggy
    replied
    I'm afraid your response is about seven years too late...

    Leave a comment:


  • J KS
    replied
    Try putting in a washing machine filled with hot water. 10 - 20 minutes later it is much easier to work with.

    Leave a comment:


  • NHMaster3015
    replied
    Re: Straightening Pex

    acceptable by code, yes. Acceptable by my standards, no.

    Leave a comment:


  • DUNBAR PLUMBING
    replied
    Re: Straightening Pex

    Originally posted by thiggy View Post
    NHMaster, I notice that among the products that you are railing against is CSST. Is this an unsatisfactory product? I recently had a length of black iron pipe replaced due to rust-out because of contact with the soil (due to poor support in crawl space) under an old farm house in rural Miss. The service man from our local propane supply company used CSST for the repair. Is this not a professionally accepted method of gas plumbing?
    SCH40 black iron cannot withstand improper installation in conditions it was never intended to endure.

    Someone encased a black iron pipe in a concrete steps leading out of a basement, it rusted completely through and the house exploded as a result.

    I've seen flex supplies for gas lines get a hole rubbed in them passing through a floor, the floor being wet and changing the smell, almost smelling like a sewer smell.

    Flexible gas line is a shortcut, no matter which way you look at it.

    Leave a comment:


  • thiggy
    replied
    Re: Straightening Pex

    NHMaster, I notice that among the products that you are railing against is CSST. Is this an unsatisfactory product? I recently had a length of black iron pipe replaced due to rust-out because of contact with the soil (due to poor support in crawl space) under an old farm house in rural Miss. The service man from our local propane supply company used CSST for the repair. Is this not a professionally accepted method of gas plumbing?

    Leave a comment:


  • TheMaster
    replied
    Re: Straightening Pex

    Originally posted by Will Rogers Plumbing View Post
    What's the going rate for 20' of 1/2 SS pipe? $100, $150, $200? Grainger has the fittings. A 1/2" propress coupling will cost you 18 bucks. Not bad I guess when that fitting will most likely outlast me....
    I bought some 3/4"x4" 316 stainless steel sch 40 nipples for 4.75 each and thats a good price considering I only bought 8 of them. It gets expensive really quick. I dont know how much the pipe is

    Leave a comment:


  • Will Rogers Plumbing
    replied
    Re: Straightening Pex

    What's the going rate for 20' of 1/2 SS pipe? $100, $150, $200? Grainger has the fittings. A 1/2" propress coupling will cost you 18 bucks. Not bad I guess when that fitting will most likely outlast me....

    Leave a comment:


  • TheMaster
    replied
    Re: Straightening Pex

    Originally posted by PLUMBER RICK View Post
    no worries guys. they make stainless propress
    rick.
    And for those worried about the propress seal they can cut and thread it. Problem solved.

    Leave a comment:


  • PLUMBER RICK
    replied
    Re: Straightening Pex

    no worries guys. they make stainless propress
    rick.

    Leave a comment:


  • TheMaster
    replied
    Re: Straightening Pex

    Originally posted by Will Rogers Plumbing View Post
    I'm not a welder by trade, but would welding stainless hurt its properties? Like when you weld galvanized steel you have to remove the zinc before you weld, so all your welds are at rick of rusting out.
    I'm no Weldor either and you make a good point. Lets do a change order and have threaded joints or use stainless steel compression fittings that are nuclear rated. A 1/2 valve will set ya back a couple hundred bucks....but the mofo will work in 25 years

    Leave a comment:


  • Will Rogers Plumbing
    replied
    Re: Straightening Pex

    I'm not a welder by trade, but would welding stainless hurt its properties? Like when you weld galvanized steel you have to remove the zinc before you weld, so all your welds are at rick of rusting out.

    Leave a comment:


  • TheMaster
    replied
    Re: Straightening Pex

    Copper is only as good as the installer and the enviroment it is installed in. I've repaired countless bad solder joints,paper thin copper pipe and copper pipe that has frozen and bursted,copper pipe that has been hit by lightning. Copper is far from the perfect material.

    If you want the best pipe your project with sch 40 stainless steel and have it welded. Sure you can afford it......but do you want to?

    Leave a comment:


  • Will Rogers Plumbing
    replied
    Re: Straightening Pex

    I've considered it. We will all be doing re-pipes, only this time will will be replacing pex with copper.

    Leave a comment:


  • DUNBAR PLUMBING
    replied
    Re: Straightening Pex

    Has anyone even considered what it is going to be like, dealing with 25 year old PEX when that day comes?


    Won't be able to crimp it, it'll probably lose it's outside diameter to the constant shrinking and expanding.


    And how are you going to be able to recrimp a male adapter that was put on a hot/cold line to a shower valve, in a 4-3/4" hole.


    You don't.

    Leave a comment:

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