CYA level and chlorine level and pool store recomendation

[Watermom]

It is certainly fine to run the pump with your cover on. Won't hurt a thing. I do it all the time.

[Fishcrazy]

Thanks Watermom! My test today revealed the ph has gone up tp 7.5 and the 3 tabs seem to se still raising the FC level now to 4.5 and no CC at all. Is it characteristic for the trichlor pucks to continue to dissolve at the same rate until they are gone or do they speed up at the end?