Generally, the filter element needs to be replaced in the following situations:

1. The filter element is deformed or damaged;

2. When the precision filter's filtration accuracy decreases and cannot meet the effluent requirements

3. The system's water output does not meet the standard.

The common reasons for frequent replacement of security filter cartridges are:;

1. The raw water quality is unstable and fluctuates frequently, resulting in an excessive amount of particulate matter entering the filter element and shortening the cycle.

2. The pre-treatment operation effect is poor, and the flocculants, scale inhibitors, etc. added to the pre-treatment are incompatible with each other or do not match the water source, forming sticky substances that adhere to the surface of the filter element, resulting in effective filtration of the filter element.

3. The quality of the filter element is poor, and the inner and outer pore sizes of the poor quality filter element are basically the same.

In fact, only the outer layer has an interception effect, while the filtering pore size of the good filter element is gradually reduced from the outside to the inside. The inner layer filtration accuracy is 5 ± 0.5 µ m, and the amount of pollutants is larger and larger, Long term use can ensure qualified effluent quality.