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sizing of storm building drain

M

Mac Moonfire

SAWHORSE
Joined
Aug 2, 2019
Messages
89
Location
BC
I'm trying to size storm building drains from BC plumbing code 2018.
Table 2.4.10.9. and the notes are easy enough to calculate the potential hydraulic load based on the roofs area.
I have a site where two buildings are discharging both gutters and foundation drainage into a main that end in ditch.
I don't know how to calculate the hydraulic load of the drainage system. It seems very site-specific anyway
Thanks
New Document(9) 12-Mar-2021 14-42-04-1.jpg
 
Don't connect the foundation and roof drains. Blockage downstream of the connection will force water coming off the roof back into the foundation drain.
 
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