FILTERSORB® CT (Combine Treatment), a more efficient and simple treatment to prevent all kinds of scale. FILTERSORB® CT combines the two types of FILTERSORB: the FILTERSORB® SP3 and the FILTERSORB® SPA. FILTERSORB® SP3 prevents cationic scale (based on positively charged ions) such as Calcium and Magnesium. The SPA prevents anionic scale (based on negatively charged ions) such as Sulfates, Silicates and Phosphates (Calcium phosphate).

FILTERSORB® CT is an excellent choice for all residential, industrial, and commercial applications since it provides optimum scale prevention. In addition, this combined technology results in very high efficiency and provides additional capacity to the system.

The FILTERSORB® SP3 and FILTERSORB® SPA combination is well suited to treat water with hardness over 15 grains or permanent hardness over 250 mg of (Ca + Mg + SiO2 + SO4) is typically over 60 % of the total anions.

FILTERSORB® SPA is only available as a combined product with FILTERSORB® SP3 (i.e. as part of FILTERSORB® CT ) and cannot be supplied separately.

The goal of the designer of a CT combined treatment system is to ensure that the correct water quality and quantity is delivered with optimized Tank and head and distributers. The optimum design depends on the relating importance of water parameters.