CHL
Member
What is the minimum depth below a monolithic slab for a sewer drain pipe, where the design temp is 40 degrees (no frost line)?
FBC 2010 Residential P2603.6.1 states "Sewer depth. Building sewers that connect to private sewage disposal systems shall be a minimum of [NUMBER] inches (mm) below finished grade at the point of septic tank connection. Building sewers shall be a minimum of [NUMBER] inches (mm) below grade.
The draft 2014 code also does not yet specify the [NUMBER]. The contracter wants to use 12" deep or the crown of 4" pipe, just under 4" below the 4" concrete slab, at the shallowest point.
If this is not a code issue, what is the common practice for cental/southern Florida?
תודה "Thanks"
FBC 2010 Residential P2603.6.1 states "Sewer depth. Building sewers that connect to private sewage disposal systems shall be a minimum of [NUMBER] inches (mm) below finished grade at the point of septic tank connection. Building sewers shall be a minimum of [NUMBER] inches (mm) below grade.
The draft 2014 code also does not yet specify the [NUMBER]. The contracter wants to use 12" deep or the crown of 4" pipe, just under 4" below the 4" concrete slab, at the shallowest point.
If this is not a code issue, what is the common practice for cental/southern Florida?
תודה "Thanks"