1. Temperature: during the operation of multi-media filter in the process of water quality treatment, if the temperature is lower and lower, the viscosity of raw water will become larger and larger, and the filtration speed of the equipment will slow down, thus making its water production efficiency lower. In the case of making the same amount of water, the time spent will increase with the decrease of temperature. The viscosity of liquid is an exponential function of temperature, which decreases rapidly with the increase of temperature. To a certain extent, heating is a simple and effective measure to reduce viscosity, and also an effective measure to speed up the production efficiency of ultra pure water.

2、水压：多介质过滤器水质的过滤工作需要借助压力来完成，只有在合适的压力下才能对水起到好的过滤效果。压力如果过小，水产量就会变小，设备的制水效率降低。压力过大，也不利于多介质过滤器的工作，长期压力过大，会加快多介质过滤器的老化，也会加剧滤料的损耗，给使用增加了成本。

2. Water pressure: the water quality filtration of multi-media filter needs to be completed with the help of pressure. Only under the appropriate pressure can the water have a good filtering effect. If the pressure is too small, the water yield will be reduced and the water production efficiency of the equipment will be reduced. If the pressure is too high, it is not conducive to the work of the multi-media filter. If the pressure is too high for a long time, the aging of the multi-media filter will be accelerated, and the loss of the filter material will be increased, which will increase the cost of use.

3、杂质的含量和种类：多介质过滤器使用的主要目的就是为了去除水中的各种杂质，但是各地区水中的杂质种类不同，使用多介质过滤器没能很好的进行去除，这时就需要添加一定的预处理，先将水中的大颗粒物质沉淀掉。

3. Content and type of impurities: the main purpose of multi-media filter is to remove all kinds of impurities in water. However, the types of impurities in water are different in different areas, and the use of multi-media filter can not remove them well. At this time, it is necessary to add certain pretreatment to precipitate the large particles in the water.

多介质过滤器的维护与保养需要对设备本身来进行要求，明确多介质过滤器维护保养的目的，可以及时的处理设备在运行过程中由于技术状态的变化而引起的大量的问题，可以随时的改善设备的技术状况，保证正常的运行，延长多介质过滤器的使用寿命。

The maintenance and maintenance of the multi-media filter requires the equipment itself. The purpose of the maintenance of the multi-media filter is clear. It can timely deal with a large number of problems caused by the change of technical status in the operation process of the equipment. It can improve the technical status of the equipment at any time, ensure the normal operation, and extend the service life of the multi-media filter.

多介质过滤器一旦出现了损坏通常会导致正常的运行失败，所以需要及时的对设备进行定期的检查、保养与维护。使用一定的工时用于维护保养。对设备中的各种部件进行检修，关注滤料的情况。

Once the multi-media filter is damaged, it usually leads to normal operation failure, so it is necessary to timely carry out regular inspection, maintenance and maintenance of the equipment. Use certain working hours for maintenance. Overhaul various parts of the equipment and pay attention to the condition of filter materials.

主要的部件应设专卡记录产地、、运行状况、维修次数、保养人等。所有设备应有足够的零配件，在寒冷地区冬季使用时，尤其需要注意室外管道、闸门、水泵等设备的防冻保温工作。

Special card should be set for main parts to record the place of origin, price, operation status, repair times, maintenance personnel, etc. All equipment should be equipped with enough spare parts. When it is used in winter in cold areas, special attention should be paid to the anti freezing and thermal insulation work of outdoor pipelines, gates, pumps and other equipment.