Water Solutions Unlimited has manufactured blends of phosphates for over 20 years. WSU blends different phosphate ingredients and percentages for specific water quality conditions. These blended products are all NSF certified for uses such as sequestering and corrosion control and can be blended to do both. The success of specific products in one water quality condition promotes usage by other systems with like water quality problems. These are called analogous systems. WSU blended products are available in both liquid (100 series) and granular (300 series) forms. WSU field representatives strive to “Use the Right Product Blend for the Right Application.”