1. The filter element is the core component of the filter, which is made of special materials and belongs to the vulnerable parts. It needs special maintenance.
2. When the filter works for a long time, the filter element has intercepted some impurities, which will lead to the increase of pressure and the decrease of flow rate. At this time, it needs to be cleaned in time.
3. When cleaning, we must pay attention not to make the filter core deformed or damaged.