1/2' compression angle stop on cpvc?

Discussion in 'Plumbing Forum, Professional & DIY Advice, Tips & ' started by Racer814, Mar 10, 2007.

  1. Racer814

    Racer814 New Member

    Messages:
    124
    anybody ever seen/done this?...went on a call yesterday about a leak behind a toilet...unfortunately it had already buckled the hardwood in an adjacent room...it was leaking from the 1/2' compression nut where it slipped on the cpvc...wasnt very tight....I removed it and installed a glued on stop...every single stop in the house was done the same way....looks like trouble waiting to happen.
  2. TNPlumber

    TNPlumber Plumbing Contractor

    Messages:
    31
    Location:
    East Tennessee
    Trouble

    I have seen this on several occasions. I personally would never do it because of the stress on the pipe. Where there brass inserts in the pipe such as with poly ice maker line?
  3. Racer814

    Racer814 New Member

    Messages:
    124
    nope....just the brass ferrule biting into the cpvc.....I would never ever do that

    I mean...why?....they make valves that glue to cpvc...
  4. TNPlumber

    TNPlumber Plumbing Contractor

    Messages:
    31
    Location:
    East Tennessee
    no wait

    I think the idea is to turn the water on quickly w/o waitng for the glue to cure. I hate to see cpvc when doing service work, in any situation.
  5. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Messages:
    21,817
    Location:
    New England
    I know that on PEX, to use a compression fitting, you need the sleeve inside of the pipe (they are usually SS on the ones I've seen) to make a reliable connection; otherwise, the compression can collapse the pipe or allow the valve to slide off or leak as you found. If you use one of those, I don't see much difference between copper or CPVC, and you can use the same valve, with the extra step of inserting the sleeve first.
  6. Mikey

    Mikey Aspiring Old Fart, EE, computer & networking geek

    Messages:
    2,713
    Location:
    Central Florida
    I tour homes under construction regularly to see what the "pros" are doing. I think these luxury-home builders are hiring off the corner for everything that won't show, and spending their big bucks on covering up -- er, finishing. I see a lot of 1/2" CPVC stubouts that I know are going to be trouble down the line. Why don't they spend the extra $2 or $3 for a transition drop-ear el? Wouldn't make much of a dent in a $400K job. Oh, well, there will always jobs for a good service plumber and drywall repair guy.
  7. Racer814

    Racer814 New Member

    Messages:
    124
    I would worry about the cpvc stress cracking down the road...
  8. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    26,270
    Location:
    Cave Creek, Arizona
    valves

    Brass compression fixture angle stops are not the highest quality valve ever made, and CPVC ones are even lower on the quality scale. How many times do you think you can cut off a glued on one and still get by with installing a new valve?
  9. Cal

    Cal New Member

    Messages:
    228
    Location:
    Northern Virginia
    "Dahl" makes a GREAT cpvc 1/4 turn valve . they actually make cut-offs for all and any type or size of supply .
  10. Racer814

    Racer814 New Member

    Messages:
    124
    totally agree with you....the cpvc valve I installed is a brass unit with a cpvc insert that allows for glueing....plus the main valve body has a threaded connection that allows for removal....

    I don't care much for compression angle stops in general anyway.....seen too many that leaked....when I was doing new construction I used sweat under sinks and a shower ell in the wall with 1/2" chrome nipple coming out on toilets and pedestals...
  11. Racer814

    Racer814 New Member

    Messages:
    124
    very true....I had no idea how shoddy the workmanship was in general until I started doing service...it's unbelievable at times...I honestly think it's a reflection on todays society ....people are more concerned about how much $ they can make in a day vs doing a job they can be proud of.
    Last edited: Mar 11, 2007
  12. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    26,270
    Location:
    Cave Creek, Arizona
    stops

    I don't know how many thousands of compression stops I have installed in the past 55+ years, but the number that leaked because they were compression is in the low tens.
  13. Racer814

    Racer814 New Member

    Messages:
    124
    I've came across two in the past 2 months....both caused significant damage

    but I'm pretty sure that you didnt install them:D
  14. Racer814

    Racer814 New Member

    Messages:
    124
    why would you install thousands of them then?
Similar Threads: 1/2' compression
Forum Title Date
Plumbing Forum, Professional & DIY Advice, Tips & Compression fittings and brass pipe Feb 22, 2014
Plumbing Forum, Professional & DIY Advice, Tips & Compression valve corrosion Nov 27, 2013
Plumbing Forum, Professional & DIY Advice, Tips & Push-Connect (Shark Bite style) vs Compression or Sweat Solder Nov 20, 2013
Plumbing Forum, Professional & DIY Advice, Tips & Unusual, to me anyway, ferrule for a compression fitting Oct 12, 2013
Plumbing Forum, Professional & DIY Advice, Tips & What makes compression fittings leak? Oct 6, 2013

Share This Page