How To Remove This Antisiphon Valve? - Plumbing - DIY Home Improvement | DIYChatroom

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Old 05-11-2013, 09:05 PM   #16
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Ben has it right. The valve is old and shot. Put a back up wrench on the male adapter right at the wall and put a pipe wrench on the valve. Pull up on the back up while you push down on the pipe wrench and unscrew the valve and remove it. Replace it with a ball valve.

PS Don't forget to turn the water off at the main or on the inside valve first.


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Old 05-12-2013, 01:54 AM   #17
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If the pipe is turning then it might be unthreading from a fitting in the wall. This could be a good thing. Because once it's out you can make a new one the same size, and put a new spigot on at the same time. If you're really lucky then a new frost-proof kind of spigot in the same length could be used. Bring the whole shebang to a plumbing supply place (not a box store) and have them help you get the right parts.
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Old 05-12-2013, 08:39 AM   #18
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If the pipe going into the wall is turning then you are going to need two wrenches. I would try drilling out the set screw or use a dremel with a cut off wheel and very carefully slice through the anti siphon. Perhaps cut a V around the set screw so that piece will fall out. Then it will unscrew.
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Old 05-12-2013, 12:54 PM   #19
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Channel locks work well.
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Old 05-12-2013, 01:01 PM   #20
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Originally Posted by TheEplumber View Post
What ever you do, don't let the copper line turn.
If you do, you may actually be corkscrewing (kinking) the pipe inside the wall- not good.
well spoken young jedi ben sr


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