When does foam from algaecide go away?

Foam from algaecide typically dissipates within a few hours to a couple of days, depending on factors such as water temperature, agitation, and the specific algaecide used. Warmer temperatures and increased water movement can help speed up the breakdown and dispersal of the foam. Additionally, the foam may persist longer in stagnant or cooler water conditions. Regular maintenance and filtration can also help reduce foam more quickly.