I have a half-full 25lb bucket of AquaChem 3" trichlor pucks leftover from 2009. The bucket has been in a shady spot on the deck outdoors since 2009. Bucket was water tight . . . how do I determine if the pucks are still any good? BTW - lost my sense of smell 5+ yrs ago, so the old wafting test does nothing for me . . .

Also - opened on Sat. Zero CYA - been shocking with bleach only. At what point should I drop in my trichlor floaters?

Thx everyone!
K