What does cleaning the filter housing mean in practice?
After cutting off and releasing the pressure, the sediment is removed from the cover, head, thread and gasket groove without scratching the surface.
When does it matter?
Left biofilm and sand under the O-ring may contaminate the new cartridge or cause leakage after assembly.
Which solutions are related to it?
Clean tools and an agent compatible with the material are used, the elements are rinsed and the seal and cover are inspected before assembly.