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Old 06-17-2010, 11:50 AM   #1
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Replacing shut off valves in bathroom


I have these pop-out valves in my bathrooms and two of them (toilet and cold water) pop out indiscriminately so I bought two replacement valves. I was told to cut off the plastic pip that goes from the old valve to the toilet with a knife, which I did, and then on screw the old valve from the galvanized pip. I keep turning it and it doesn't appear to be threaded. Am I doing something wrong in unscrewing it? Do I need to use a pip cutter to pull it off and sweat the pipes? Any insight would be great!

Thanks!

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Old 06-17-2010, 11:57 AM   #2
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Replacing shut off valves in bathroom


Now that you've cut your supply lines with a knife, you'll need new ones. I would suggest braided stainless steel supply lines. To answer your question, it sounds as though the existing valves are compression type valves hooked to copper pipe, not threaded galvanized. With compression valves, you'll hold the valve itself with a wrench, and use another wrench to unthread the compression nut. Then you'll need to make sure to get the old compression sleeve off and replace it with the new one.

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Old 06-17-2010, 12:11 PM   #3
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Replacing shut off valves in bathroom




Here's a picture. How exactly to I get this valve off? And what kind of valve will I need to buy to replace it?
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Old 06-17-2010, 12:31 PM   #4
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Replacing shut off valves in bathroom


That's definitely 1/2" copper pipe you're dealing with. The new valves you'll need are 3/8"x5/8" compression angle stops. I think 1/4 turn are best.

Honestly, I've never seen a valve like that one. It's definitely a compression type valve though. The back side of it closest to the wall should have a nut holding it onto the pipe. I can't tell in the picture, is there a way to remove the plastic cover around the back side of it? If not, it may be similar to a "SharkBite" type fitting and would require depressing the back side with a special tool to remove it. Do you have any slack in the copper if you pull it gently away from the wall? If there is enough room, I would just cut it off directly behind the old valve with an AutoCut
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Old 06-17-2010, 12:45 PM   #5
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Replacing shut off valves in bathroom


Thanks for your help. Looks like I will be calling Ben Franklin.
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Old 06-17-2010, 12:48 PM   #6
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Replacing shut off valves in bathroom


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Thanks for your help. Looks like I will be calling Ben Franklin.
You're welcome.

I'm assuming that's a plumbing company?

Did you have any slack in the pipe at all?
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Old 06-17-2010, 01:01 PM   #7
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Replacing shut off valves in bathroom


Yeah, local company.

There is a little slack, but I don't have an autocut (just a little pipe cutter with a thumb screw) and I have never sweated a pipe in my life.
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Old 06-17-2010, 01:49 PM   #8
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Replacing shut off valves in bathroom


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Originally Posted by Haugenbp View Post
Yeah, local company.

There is a little slack, but I don't have an autocut (just a little pipe cutter with a thumb screw) and I have never sweated a pipe in my life.
Sounds good. If you had enough room, you could just use a hack saw to cut it but then you have burrs to worry about sanding. So I wouldn't suggest it. If you have all of the parts ready when the plumber gets there you may save some money. Maybe they'll cut you a deal. Perhaps just the cost of a service call. Thus, you'll need again the 3/8" x 5/8" compression angle stop(s), and a 3/8" toilet tank connector(s) (supply line) 3/8" comp. X 7/8" Ballcock. They'll come in different lengths so make sure your supplies aren't too short. A loop is better than a stretch.
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Old 05-29-2011, 04:07 PM   #9
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Replacing shut off valves in bathroom


I have the same type of valve in my bathroom and need to replace it so I can install a bidet. The valve works great but I need a T adapter to connect the other water source. I'm not sure how to get this thing off of the pipe. The pipe is not copper, but a different material. I don't think it's PVC because it is not real smooth. I bought a replacement valve that I can use with a T adapter, but just don't know how to get this thing off. Do I need to hack saw it off and then put the compression valve on or will it come off without sawing?
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Old 05-29-2011, 08:12 PM   #10
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Replacing shut off valves in bathroom


Start your OWN thread and post a pic or 2. It really is worth a thousand words.
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Old 05-29-2011, 09:00 PM   #11
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Replacing shut off valves in bathroom


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Start your OWN thread and post a pic or 2. It really is worth a thousand words.
Its exactly like the one pictured in this thread. Why post a duplicate. I need to know how to take this thing off. Do I cut it off, or does it turn off? I realize this is an alien technology designed valve. I've been to 4 Lowes and Home Depot stores and nobody has ever seen this type of valve. I'm just going to accept the fact that there isn't anybody on this site that knows anything about this type of valve so I won't bother with it. I'm gone!
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Old 05-30-2011, 08:12 AM   #12
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Replacing shut off valves in bathroom


Dave, nice attitude!

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