I am in the process of adding CYA to my pool using the sock method. I also have to change the cartridge in my filter. I read that for sand filters, they shouldn't be backwashed for a week after adding CYA. Is there a similar rule for not changing a cartridge for a certain period after adding CYA or does this not apply? Don't want to lose the CYA I just added by switching filters.
Thanks!
Thanks!