High Phosphate 2500 - Options?

[waterbear]

Most sequesterants are based on derivatives of phosphonic acid. They can add phosphates to the pool from what I underatand. This is usually not a problems since it is very rare that phosphates are the limiting factor in algae growth. The CC are coming from nitrogen compounds like ammonia, urea, and organic nitrogen compounds, not phosphates as far as I know. Phosphates are measured in PPB and over about 175 ppb is the danger level, supposidely. I have over 1000ppb in my pool (measured with a salt water aquarium test kit that has a bit more accuracy then the one at the pool store where I work. My aqauarium kit uses a comparator block and better resolution, the one at the store a paper color card.