You'll have to keep your chlorine level at shock level as consistently as you can until you can go overnight without losing more than 1ppm of chlorine and your CC reading is no greater than 0.5ppm. It can take a lot of chlorine to get rid of the ammonia that is a byproduct of CYA degradation over the winter. Sometimes you think you'll never be able to quit dumping in bottle after bottle of bleach and then one day, the chlorine will hold!

By the way, it is best to start your own thread instead of tacking onto somebody else's. It gets kind of confusing to be helping with two pools within the same thread. Good to see you back on the forum this year!