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Discussion Starter · #1 ·
there is a 1/2 inch copper water pipe i want to add a shut off valve with a few inches space to put it in. also there is no "wiggle room" i other words if i cut out a few inches i do not believe i'll be able to move either piece up or down to help put in a new valve.

i think this might work but am not sure. thoughts?

https://www.amazon.com/gp/product/B00MB10PVK/ref=ox_sc_act_title_1?smid=ATVPDKIKX0DER&th=1

https://www.sharkbite.com/sites/default/files/migrate/SB_SlipBallValve_SpecSheet_061515.pdf

TIA & stay safe!

Jim
 

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The slip shutoff you linked to will work. Just be sure to pay attention to how much pipe to cut out - if you cut too much out you'll end up needing another connector.

The problem with the slip shutoff is it does not have a drain, so if it is shutting off a hose bib you won't be able use the drain to let air in to drain the water out for winter.

If there really is no play in the pipes, then I'm not sure how the regular SB would work but maybe after you cut it there will be more play.
 

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A regular Sharkbite will work.

I like this idea as well. Cut off the pipe the distance you need to make the connection to the SB as close to the joist as you can. Once you cut the pipe free, there will be wiggle room in both pipes.

If you need the drain feature on the valve, put it on the side you need to drain.

Once you have the valve connected to one side of the pipe, now you can measure and cut the needed distance off the remaining pipe. Don't forget to ream out the insides of the cut pipe.

Even though it is not required, I like to prep the pipe as if I am going to sweat them. Either with a wire brush or with plumbers emery cloth.

Also, make sure to mark how far you need to insert the pipe into the SB.

Good luck and let us know how it goes.
 

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Discussion Starter · #7 ·
Thanks one & all! Spoke to Skarkbite and they are saying if I can't spread apart the pipe after it's been cut to get the add on started then it's no go. I don't know if I'll be able to do that or not until I try - right now there is no play. (I do see that plastic grab think on the joist and would take that off - maybe that would help, maybe not).

I can solder if need be, but would rather not.

So, what would you recommend on how to add a shut off valve in a situation where I can not move the cut ends? I want to prepare for the worst case possibility here as I have to turn off the water to the house to do this.

Thanks!
 

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Where does the copper go after the elbow?

Regardless, you will have enough play once you cut it. Trust us.

If you don't, consider cutting the pipe after the elbow and putting in a sharkbite connector. That way it will fit for sure. You cut the pipe close to the joist, leaving about an inch for a connection. IF you feel there is not enough play in the pipes after you cut off for the valve, cut off the pipe after the elbow.

Remove the cut off pipes, but make sure to keep accurate measurements.

Place a connector of your choice Sharkbite, Evopex(non-removable sharkbite), compression or sweat on the run where the elbow cut-off went.

Place the ball valve on the end coming out of the joist. (remember to mark how far you need to insert the pipe into the sharkbite, usually a 1/2 inch)

Take the cut-off piece of pipe and hold it so that you can place a mark on both ends of where you need to cut off the excess. After cutting off the excess, try inserting the newly cut piece into the ball valve AND the other connector to see if you have enough place. Or try inserting it into the connector first and then the valve.

As long as you have the orange thing that usually comes with the sharkbite connectors, you can play as much as you want. Just remember to push in a bit as you try to remove the pipe from the Sharkbite, it will help.
 
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Ifn't it was me I would cut out the coupling on the wall and replace it with the Sharkbite valve shown by Ktownskier. That appears to be a more appropriate locaion for the valve.



The valve has an arrow showing the direction of flow and it is a stop and waste valve.


If you don't know how much pipe to cut out, cut two short pieces of copper pipe and insert in the Sharkbite valve. Doesn't matter how long they are. Measure the total length of the valve and the two pieces of pipe. Remove the pipes from the valve (you will need the removal tool).
Put the two pieces of pipe together end to end. Measure their length and subtract that from the first measurement. That will be the correct amount of pipe to cut out of the pipe coming down the wall.

The upper section of pipe can easily be pushed up to insert pipes into the valve. The valve can be attached to the wall to prevent rotation.
 
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