Best premium phosphate remover (Orenda — industry standard) · Best for: Pools where the phosphate level is high (1000+ ppb) and you want Orenda's lanthanum-based formulation that drops phosphates to near-zero in 24-48 hours. The CV-700 line adds an enzyme clarifier that breaks down oils and organic buildup while the lanthanum binds phosphate — so you get clearer water plus phosphate removal in one bottle. 1 qt treats up to 20k gal at the standard dose.
