When using EZ-TC, close No. 1 and 2 shutoffs and install sighttube using adaptor fitting.
在采用EZ - TC时，关闭1号和2号关闭阀，采用适配器连接件安装观察管。
2
Assemble 3 piece water column sighttube in numerical sequence and attach to top half of body module adaptor.
安装3件式水量数字序列观察管，并将其附加在阀体模块适配器的上半部。
3
The orientation of these tubes naturally blocks the line of sight from the adjacent apartments and while gazing down the length of the tube from inside only the ocean can be seen.