I have a mechanical double vertical releaser that the PVC 2 inch going into the 12 inch canister has snapped off.

My idea is to take a little coping saw and cut the remainder off to the canisters flush, take a hole saw and saw a hole into a nice piece of 1 1/8 Advantech sub flooring to use as a guide to use the hole saw to drill out the old pvc pipe.

Anyone ever have this and had a way that’s better?
Also what pvc glue is being used to glue these back up?