Insert the top of the PEX around the top from the fitting. Slide the tip with the PEX tubing which includes the crimp ring or cinch clamp on it over the end in the fitting you screwed on to the copper tubing. Push it on as far as it will https://nasdaqexpertadvisor32986.blog2news.com/32669531/the-5-second-trick-for-copper-tee