1.How many fixtures can one vertical wet vent typically serve?
1.一根垂直湿式通气管通常可以服务多少个设备？
2.Which type of fitting is used to connect an ejector pump discharge to a horizontal main line?
2.将污水提升泵出水口连接到水平主管道时应使用哪种管件？
3.Where to connect multiple gas appliances to a shared vent?
3.多个燃气器具应连接到共用烟道的哪个位置？
4.What is “greywater”?
4.什么是“灰水”？
5.How should a chemical waste vent be installed?
5.化学废水排气管应如何安装？
6.Which requires potable water?
6.哪项需要饮用水？
7.What does a purple pipe carry?
7.紫色管道输送什么？
8.What’s the minimum toilet drain pipe size in a home?
8.住宅中马桶排水管的最小管径是多少？
9.Where are cleanouts most commonly located?
9.清理点最常位于哪里？
10.Which fitting is used to connect a building drain to the main sewer line?
10.将建筑排水管连接到市政下水道应使用哪种管件？
