Insert the end of the PEX around the tip in the fitting. Slide the tip in the PEX tubing which includes the crimp ring or cinch clamp on it in excess of the end with the fitting which you screwed on to the copper tubing. Push it on so far https://dickc963kmo2.life3dblog.com/31201414/how-much-you-need-to-expect-you-ll-pay-for-a-good-copper-female-adapter