Not sure how to tell if it is producing chlorine, but I think it is?Actually, yes, I believe so. It may affect the flow switch. Is it producing chlorine? I think you can just lift it out and reverse the innards though right?
It does not, so will just have to cut the pipe and flip it and use couplings to fix I suppose!Does it have unions?
Can you take a wider shot? Do you have room to put a union on each side of it? If so, get 4 unions and another piece of PVC pipe. This way you can make a winterizing spool.