American Standard replacement float tower
I called American Standard customer service and they are sending me a replacement float tower unit. I hope they're not too difficult to install.
As for the algae, has anyone else seen anything like that in a toilet tank?
It's quite disgusting looking. It's in all my toilets so I would guess it is something from the water. Maybe I can put in a toilet cleaner tablet for a week or so and hope that it kills off the algae? Hope that doesn't hurt the flapper and other components too much.