The term capacity is often used in water treatment in connection with ion exchange . The capacity indicates the absorption capacity of the exchange resin . For softening systems, for example, the capacity is given in the unit m³ x °dH.
Capacity of a softening system
Capacity is an important unit in water softening . The size of the system is determined by multiplying the amount of water to be softened and the water hardness to be removed. To have a safety factor, the product is multiplied by a factor (e.g. 2 or 3).
Typical example: single-family home
In a single-family home with 4 people, the average water consumption is around 0.48 m³ per day (around 480 liters). With a water hardness of 20° dH, the necessary capacity is 0.48 m³ x 20° dH = 9.6 m³ x ° dH. Multiplied by a safety factor of 3, a system capacity of 28.8 m³ ° dH is required to ensure a continuous supply of soft water. In this calculation example, this corresponds to our Basic 40 softening system.
