I recently purchased a 25# bucket of cal-hypo from "In The Swim". I don't have anything against the BBB method, but I need to raise my CH this year.

Anyway, the bucket says to broadcast the powder into the "deepest part of the pool". My concern is that if there are undissolved granules settling on the bottom of my vinyl lined pool, won't this bleach my liner? Can I pre-dissolve cal-hypo in water prior to adding to the pool?