How to replace this push-pull shutoff?

[Peng Zhang]

Hello,

Could someone help me with the replacement of this toilet shutoff valve? There seems no screw that I can loose up so I can remove it.

Thank you very much for your help!

Best,
Peng

 

[WJcandee]

Pull on it while twisting counterclockwise. Seriously. You will keep pulling and twisting and it will come of kind of like it was screwed on there, even though it isn't.

It's a POS, so do yourself a favor and replace it with a decent quarter-turn compression ball valve.

The Dahl, like this one, is excellent:

 

[Sponsor]

 

[Peng Zhang]

thank you so much! will try it tomorrow. Do you think if installing a new quaerter-turn valve is a diy job?

 

[Jadnashua]

That existing valve is problematic, so it's good that you're thinking of replacing it. IT is cheap, and builders like them, but it is nowhere near quality!

The thing is held on with spring loaded spikes. You can push it on, but you can't easily pull it off. If you scratch the pipe up while pulling it off, a compression valve may not seal, nor will another that uses an o-ring, like the one you have. If you have something like a Dremel tool, you might cut a thin slot in it parallel with the pipe, then break off the plastic. You could then probably cut off the metal ring holding it in place. If the pipe isn't all scratched up, it's easy to install a compression valve...just takes two wrenches...one on the body of the valve to keep it from moving, and the second one on the nut which you tighten. If it isn't scratched up badly, a quick buff with some emery cloth or fine sandpaper, and the compression valve should seal. WOrst case, it's horrible, and then the best would be to solder a valve in place.

 

[WJcandee]

Do you think if installing a new quaerter-turn valve is a diy job?

Yes. It looks like you have a nice copper pipe stub to attach it to. The compression method of attaching the valve just involves putting the nut and compression ring on the stub and screwing them onto the valve. There are many videos on youtube on how to do it. It's absolutely a basic DIY job.

 

[blu325]

Sounds technical to me

 

[WJcandee]

Be sure to let us know how you make out with all this.

 

[WJcandee]

You can push it on, but you can't easily pull it off.

Which is why you turn it counterclockwise to get it off.

 

[Jadnashua]

Which is why you turn it counterclockwise to get it off.

It would probably come off as easily if you rotated it CW! But, in the process, it's likely to create some significant scratches on the pipe. A compression seal can only do so much. A dab of pipe dope on the ferrule might help, but a soldered one would certainly work and fill in those scratches if you can't buff them out with a light sanding.

 

[hj]

Quite often the 'toothed' ring pulls out of the valve when you remove the valve. If so, just shove it all the way against the wall flange and install a new valve on the copper stub.