See my comments in green
bbecky75 said:So they sold me:
3" tabs (will increase your CYA level, will also lower your PH/TA-don't put in the skimmer unless pump runs 24/7)
granular shock (Either MPS, Dichlor or Cal-Hypo. Dichlor will raise your CYA and C-H will raise your CH, MPS is non chlorine shock and better used in a spa)
calcium increaser (Don't need this since pool is vinyl)
phos free (Don't need it, return it if you haven't opened it)
pool magic (Don't know what this is so that means you prob don't need it)
PH reducer (Powder? Shld be ok to have on hand)
Algecide (Unless it's Polyquat 60 its not one we recommend; if its got Copper in it don't use.)
stablizer (CYA)