Ralph from Clementon writes
The BTI Mosquito Dunks are designed to coat the top of the water surface and slowly break down over a 30 day time frame. Since you did not specify what type of water area you are referring to where water would be changed out, we cannot accurately answer your question. If a dunk is still a solid piece floating in the water it is still actively breaking down and could potentially be moved into a new water area, but would not last as long as a new dunk.
Answer last updated on: 09/02/2022
