I would like to recommend that the pool school articles be updated re: granular CYA and the dissolving time. people are thinking that it's going to take a week to WORK as opposed to simply register on the test. so if it's true that it should be working right away (as soon as it's dissolved from the sock or however they do it) which is what I understand from what I've read here, I think the articles should be updated to reflect that so people don't go out and spend a lot of money on liquid conditioner because they need it "right away". here are two articles I know of.
I've seen this come up a couple times recently, here is one example: