what is the best way to add CYA to new pool

[cubbybeave08]

I have a brand new 24 ft round pool
cartridge filter with 2 hp hayward pump...
I shocked pool today with 1 pound of the shock provided.
Ph is 7.6
Alk is about 150
FC is right at 5 ppm

My question is now I need to add CYA...but I am not sure about the best way to do that...I have been told I could run it through skimmer, but I have been told by a more trusted source from here to put it in a sock and hang in pool...if this is the case are we talking a skimmer sock or a regular tube sock or a nylon stocking? How do I know which is the best way. I am also going to be cautions...the CYA that I have says 1 lb for 4000 gallons...since my pool is just shy of 15000 gallons I am going to start wtih two pounds and test and then see where it goes from there. Any suggestions...i don't want to put too much in.

 

[JasonLion]

How much CYA you want to add partially depends on what you are going to use as a chlorine source. Trichlor tablets contain CYA, so you don't want to add much CYA if you are going to be using trichlor. If you are going to be using bleach I would start with 3 lbs poured slowly into the skimmer. The only restriction to adding CYA to the skimmer is that you should not backwash/clean your filter for a week after adding CYA.

The sock method is really only valuable if you know you will have to backwash/clean the filter.

 

[cubbybeave08]

Jason, brand new filter and I have only been running it for about three weeks now...all the big stuff gets caugth in the baskets...So I won't be backwashing or cleaning the cartridge for two long...I started with just shock but am going to use either liquid clorine of bleach so I won't be using the tabs...I find that the tabs are just too hard to be consistent with. Thanks for that advice...