Hello all... this is only my second post and I hope its worthy

I have a SWG in my 20,000gal plaster pool. I've been very happy with all the normal benefits of a SWG, even if I do have to keep adding Muratic Acid regularly. My questions...

When I need to shock, is it ok to use Di-clor instead of bleach? Since I have a SWG the Cya levels should not be a problem, and I can just throw in a couple scoops in stead of luging around bleach bottles.... right?!? In other words... are there other downfalls to using Di-clor?

When shocking with a SWG system, should you shut the SWG off till the FC levels drop or just let it keep running, which would take longer for the levels to drop.?

Thanks....Dave