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Old 09-04-2017, 06:45 PM   #16
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Re: Remove hose bibb w/o loosening hidden nipple?


I have seen people attempt what you're doing- they corkscrew the copper pipe inside the wall if it's not a drop ear 90. Then you're in a world of hurt......
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Old 09-05-2017, 08:41 AM   #17
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Re: Remove hose bibb w/o loosening hidden nipple?


Quote:
Originally Posted by TheEplumber View Post
I have seen people attempt what you're doing- they corkscrew the copper pipe inside the wall if it's not a drop ear 90. Then you're in a world of hurt......
!!!!!!

Y'know, this scenario did cross my mind. Are you saying that the safe/correct way to handle this is to open the wall?
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Old 09-05-2017, 02:46 PM   #18
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Re: Remove hose bibb w/o loosening hidden nipple?


how do you know what's on the other side? it could be a threaded fitting soldered onto a pipe, so turning it will only twist the pipe. like it has been said, then you are in a world of hurt.

if the cleanup, pb blaster and two wrenches doesn't do the trick, consider a hacksaw and dremel. cut the bib off after the threads, pb blast it some more from the other side and then cut slices out of the "ring" that is left with the dremel, until you can pop the rest of it off. just be careful not to go too deep with the dremel. takes some time and patience, but i've done this several times with success.
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Old 09-05-2017, 04:32 PM   #19
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Re: Remove hose bibb w/o loosening hidden nipple?


I've removed valves similar to that by cutting a kerf in the valve with a Dremel where I've indicated with the black line in the pic. Make the kerf plenty long.

With some caution the exposed threads can be felt and seen where the nipple ends inside the valve. Remember pipe diameter at the threads are tapered 3/4" per ft. so allow for that. After cutting the kerf insert a large screwdriver in the kerf and twist. Try at several increments of cutting. On brass valves I've heard the metal pop when it breaks. Then the bond is broken and the rest is down hill from there. If the threads are just nicked the Teflon tape seals it with 4-6 wraps.
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Old 09-05-2017, 04:53 PM   #20
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Re: Remove hose bibb w/o loosening hidden nipple?


I think I would first put a pair of needle nose vice grip pliers on the threaded stub out and then give the hose bib a tug. If you can get the needle nose vice grips clamped down real tight you should be able to hold the stub out.
If that doesn't work I would do like Senior Sitisen said. Cut the valve off and then splice the the threaded portion.

Might try heating the whole thing first to burn away corrosion.
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