No, water from sprinkler drain shall discharge to the sewer.

Yes. However, the emergency drains shall be protected against backflow with backwater valves.

Yes. Graywater Ready Systems are not required when the landscape area on the site does not exceed 500 square feet, or when graywater irrigation is not permitted due to geological conditions, or for additions or alterations that use the existing building drain.

No, since the pipe sizing tables for rain rainwater are based on a minimum 1% slope.

Plastic waste and vent piping in residential occupancies are allowed when the residential portion of the building is 2 stories or less.

• Monday 7:30 AM - 4:30 PM
• Tuesday 7:30 AM - 4:30 PM
• Wednesday 9:00 AM - 4:30 PM
• Thursday 7:30 AM - 4:30 PM
• Friday 7:30 AM - 4:30 PM

• Plumbing systems for buildings of 4 stories or less and up to 5 sheets of riser diagrams.