I recently hired a company to open my pool and the guys inadvertantly added 4X the recommended amount of Blue Shield Black Algae Eliminator. I figured this out after trying to determine why my pool started foaming and I couldn't get my FC up to any detectable level. After reading many of the threads in here I now realize that the algaecide was not even necesary. My question now is how I can clear out the algaecide?