Fixing the connection on ACCOR PUSHON® R-SERIES Supply Stop Valve

valve

I'm still learning since I just bought a house not long ago. I appreciate any help here for the disconnected valve under my sink.
This is the ACCOR PUSHON® R-SERIES Supply Stop Valve

Filtered water is supposed to go through this valve to the fridge(I know fridge has anther filter built in but this is how it's set up when I bought the house). But one day, the tube connecting this valve popped out and water everywhere. It was terrible.

It is not as easy as it looks to re-connect the tube with the pushon valve. It does not fit in the inlet of the valve(how was it working?). I could see one end of the tube was squeezed to do that but I just cant. Even if I could, how do I make sure it's fastened and won't pop out again?

Other parts

Best Answer

The "tube that connects the connector and the pushon valve" in your picture looks like soft clear vinyl tubing; if it is, that was the cause of the failure.

Your valve has a compression type connection:

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and is designed for tubing (copper or poly/plastic) that is fairly rigid rather than soft. The connection utilizes a ferrule:

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which I do not see any sign or mention of in your pictures or question. You will likely need to replace that short piece of tubing with a section of tubing that is compatible with both the connector and the valve's compression fitting, like poly tubing:

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