Last evening my son was putting in new tabs in the dispenser when a small chunk of a left over tab fell out of the dispenser. As he picked it up, it broke. He thought he picked up most of the pieces, but parts of them were left behind or were swept away and then settled in one spot. Now we have 4 or 5 dime sized bleached areas on the floor of the pool. Will this hurt the integrity?
This probably wouldn't have been a problem otherwise, but we turned of the pump because a lightening storm was approaching and I didn't want anything fried. I'm thinking had we left it on, it would circulated until dissolved.

For the record, said child/son is 24, so I wasn't letting a small kid play with chemicals.