Duplex, 1 building drain from 1 side to the other

[jar546]

Side by side duplex on 1 lot. DWV from unit 1 goes under the basement slab to unit 2 where they both combine within unit 2 then go outside the structure to the sanitary authority.

2009 IRC applies.

Can this be done or do they have to come out separately?

 

[Moscow]

We allow them to be done that way as long as it is a true duplex with only a one hour wall between them if it is a 2 hr wall then no seprate the sewer because then it could be 2 single family dwellings.

 

[fatboy]

Thats how we do it also, if there is a property lie in between, then separate utilities, not passing through each other.

 

[Architect1281]

So if it were a two story 1 above the other = same difference

 

[Francis Vineyard]

Same for townhouses on one lot.

 

[SCBO1]

Agree with Moscow and fatboy. It also prevents two sewer connections. What about water, two meters or one?

pc1

 

[pwood]

two meters... also two landfill and fire protection charges.

 

[Moscow]

Agree with Moscow and fatboy. It also prevents two sewer connections. What about water, two meters or one?pc1

Here our city code makes all one and two family dwellings have a seperate water meter