Old 12-29-13, 10:38 AM
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When using the sharkbite brand connectors on copper to copper is it best to leave the plastic piece in or should it be pulled out.Ive seen both options as a possibility but wanted others take on it as to which is best.
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Old 12-29-13, 12:56 PM
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I've never removed anything from a shark bite coupling, to install it.
Old 12-29-13, 02:50 PM
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trotter I think I know where you are coming from. Like Pulpo I have never removed anything from the SharkBite before I used it. Then somewhere I heard about removing the plastic insert if you are using copper, which is outlined, for example, on page 5 here:

When they say (top left page 5) “may be removed based on preference” they lose me. Doesn’t seem like a very useful statement to me.

Like to hear the answer myself. But to your question: I never had any problems by not removing the insert when I used it on copper.
Old 12-29-13, 04:40 PM
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Yes ,im curious too as to what the pros have seen/used ,and when called, for any issues with them.
Im leaning toward removing it though.
Old 12-29-13, 04:51 PM
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I leave the insert in... Some codes I assume it needs to be removed...

You just pull it out past the O ring. Then you need the pipe release tool to open the jaws to remove the insert fully...

That insert it to prevent the pipe from collapsing. keeps it round and not egged..... Such as pex or thiner walled plastic pipe....

Kind of like an insert for small 1/4" tubing used in water filtration...when using a nut and ferrule..
Old 12-29-13, 06:40 PM
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I've seen those instructions and I have removed it with no adverse effects. My theory is that it allows a bit more flow through the fitting. Granted, it's probably not enough to actually make a difference one way or another.

As others have stated, it's required for soft-walled pipes like PEX, it would only be removed for copper pipes.
Old 12-30-13, 05:24 AM
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Strictly a stiffner for plastic tubing. Not neede for ridgid pipe.
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