The main winter weather hazard in northern Georgia is freezing rain - or rain which freezes upon contact with the ground - which is 2 inches (5.1 cm) or more of snow falling in a 12 hour period, or 4 inches (10 cm) or more in a 24 hour period..
Threaded fittings on PVC are intended to connect to existing, threaded NON-PVC connectors, such as galvanized pipe or fittings. When connecting PVC to PVC it should all be glue joints without threads. You have the wrong type of fitting.Fittings are very cheap, much cheaper than adapters.ou should, instead, get a slip to thread adapter and glue it onto the pipe to thread it wherever you like. Any big-box hardware store or irrigation department should be able to provide this adapter.
Connect one side of your no-hub coupling connector to the cast iron pipe. A no-hub connector is the standard coupler to join PVC and cast iron pipes. They are available in many sizes, so make sure you purchase the one best suited for your particular needs. Tighten the bolts on the cast iron pipe end of the coupling. This tightening clamp will accept either a socket wrench or a Phillips screwdriver. Insert the PVC pipe into the other side of the no-hub coupling. Make sure you insert it all the way, so the end is as flush with the cast iron pipe as possible. A small gap or mismatch is not an issue. Tighten the clamp on this end as well, and make sure everything feels tight and secure.