重力式无阀滤池和虹吸滤池,虽已在国内得到应用,但据一些设计、使用单位反映,认为重力式无阀滤池,由于其构造为封闭式,不仅施工检修比较困难,且使用日久后,池内会出现异味。而虹吸滤池则在反冲洗时要吸走大量待滤水,且需要一组池同时 Gravity valveless filter and siphon filter have been applied in China, but according to some design and use units, it is considered that the gravity-type valveless filter, due to its closed structure, is not only difficult to use for maintenance, but also used. After a long time, there will be odors in the pool. The siphon filter requires a lot of water to be filtered when backwashing, and a set of pools are needed at the same time