The resin cartridges in your Basic 40 softening system generally do not need to be replaced because they regenerate themselves. The regeneration of the resin is an automated process that takes place during the cleaning cycles of the system. Here are some details:
Regeneration process: During regeneration, the resin is flushed with a salt solution, which dissolves and removes the accumulated calcium and magnesium ions (which are responsible for water hardness) from the resin. This “renews” the resin and can be used effectively to soften water again.
Regular cleaning: This regeneration is carried out regularly, depending on the amount of water used and the hardness of the water. In a 4-person household with a water hardness of 20° dH, the system will regenerate more frequently to ensure efficiency.
No replacement necessary: As long as the system is properly maintained and the regenerating salt is topped up regularly, the resin cartridges do not need to be replaced. However, you should regularly inspect and maintain the system to ensure its longevity and optimal performance.
In summary, the resin cartridges in your Basic 40 system are maintained effectively by the built-in regeneration process and therefore do not require regular replacement.