After using cutrine plus, what happens to the algae? Does it just turn brown and die, and then has to be raked out of the pond? Or does it somehow disenegrate and disappears/sinks to the bottom?

Assumming the cutrine does its job, and it seems like it does for most folks, can I keep putting in a dye/colorant to keep it under control? My pond is in a small pasture that my cows have access to, but it wouldnt be a problem to not put the cows in that pasture if that is the root of my problem!