6 in house main can have half the grade.

however you have to make sure you can connect 6 inch with city main at the street.

所有跟帖： 

• 有4和6分两头的接头吗? -守月- ♀ (0 bytes) () 01/26/2024 postreply 08:11:14

• 4“ 有。 没用过6”的pipe -QinHwang- ♂ (0 bytes) () 01/26/2024 postreply 08:20:10

• Here is the thing. -borisg- ♂ (657 bytes) () 01/26/2024 postreply 08:31:20

• 不是city sewer:( .没注意外面是6寸还是4寸，但室内这段应该是4寸，连接这段也必定要换成大小接口。 -守月- ♀ (0 bytes) () 01/26/2024 postreply 08:42:03