Thanks, my foaming is just about stopped now, I had a problem after the guys I hired to open my pool accidently overdosed with algecide (about 3x too much). I shocked the pool for several days and it was still foaming. It seemed to stop on it's own. Do you think these chemicals are being broken by the sun? My neighbor had the same problem from the same guys but worse (about 4.5X as much because of a smaller pool. Hers is still foaming. I guess there's no magic bullet for this. Just time and CL.