The filter pressure drainage and drainage are two ways to manually drain. Manual drainage when the water level below the level reached before the filter must be excluded.
本过滤器排水有压差排水与手动排水二种方式。手动排水时当水位达到滤芯下方水平之前必须排除。
Some older people on a regular basis filter valve to open the drain valve for water below.
比较老的一些过滤减压阀人们定期打开下面的排水阀来防水。
This invention relates to structural changing of the waste water drain trap in housing construction and the double valve water tank of the waste water filter and sanitary ware urinal.
本发明涉及改变住宅建设排水管结构及废水过滤器和卫生洁具便池双阀水箱，改变各楼层废水排水管结构利用二次水自流过滤流入便池水箱冲洗便池及冲洗拖布。
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