Quote Originally Posted by BigDave View Post
I don't think phosphates are a real issue for you now.
I do think Watermom is right and you have an algae bloom starting.
Shock the pool to 20ppm FC and keep it there until you lose no more than 1ppm FC from sunset to sunrise and you have little to no CC (0.5ppm or less). Brush the pool - daily if you can - walls and floor. Run the pump/filter 24/7.

Post a full set of K-2006 readings and pool and equipmnet specs.
Will do...Another problem is: I have white residue build up at sides and seams...At one time it was yellow....I vacuumed on waste< but it returns