1. Select a reasonable installation position, reduce elbows, and make the water outlet face the pool.

2.缩短管路。

2. Shorten the pipeline.

3.扩大出水管径。

3. Enlarge the outlet pipe diameter.

4.在进水可以保持清洁的情况下，可以去掉滤网。

4. The filter screen can be removed when the water inlet can be kept clean.

5.调整轴向间隙，防止叶轮口环和轴向间隙的不恰当，使用的时候根据水泵的出厂说明进行调整。

5. Adjust the axial clearance to prevent improper impeller ring and axial clearance. When using, adjust according to the factory instructions of the water pump.

6.及时管道堵塞物。留在进水管、叶轮或者导流壳流道里面的异物。

6. Timely remove pipe blockages. Remove the foreign matters left in the inlet pipe, impeller or flow passage of the guide housing.

7.防止水泵进气。水泵如果进了空气，出水量就会减少，需要对各个密封部件进行检查维护。

7. Prevent the water pump from entering the air. If air is fed into the water pump, the water output will be reduced, and all sealing parts need to be inspected and maintained.

水深越深，压力越高，罗茨鼓风机需要的电机功率就越大，所以水深会直接影响到罗茨鼓风机的选型。并且随着水深的增加，对罗茨鼓风机的性能要求也越大，相对应的风机也越高，所以在购买罗茨鼓风机时一定要选择性价比高的型号。水深超过10米以上属于高压状态，对罗茨鼓风机的性能要求也会更高。在这个时候一般采用双级串联罗茨鼓风机会比较合适，普通的罗茨鼓风机一般满足不了要求。在罗茨鼓风机选型时，不要只看压力值，而且还要关注风量的大小，只有风量和压力相匹配才能够使用，对于罗茨鼓风机来说，只有保证风量的持续和稳定才能够满足日常需求

The deeper the water depth, the higher the pressure, the greater the motor power required by roots blower, so the water depth will directly affect the selection of roots blower. In addition, with the increase of water depth, the performance requirements for roots blowers are greater, and the corresponding fan price is higher. Therefore, when purchasing roots blowers, you must choose a model with high cost performance. If the water depth is more than 10m, it belongs to the high pressure state, and the performance requirements for Roots blower will be higher. At this time, it is generally appropriate to use two-stage series roots blower, and ordinary roots blower can not meet the requirements. In the selection of roots blower, we should not only focus on the pressure value, but also pay attention to the air volume. Only when the air volume and pressure match can we use it. For roots blower, only when the air volume is continuous and stable can we meet the daily needs

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