What are the best practices for connecting PEX to PVC fittings in a plumbing system?

The best practice for connecting PEX to PVC fittings in a Plumbing system is to use a transition fitting specifically designed for this purpose. These fittings ensure a secure and leak-free connection between the two types of pipes. It is important to follow the manufacturer's instructions carefully and use the appropriate tools to make a proper and reliable connection.