Residential Plumbing - Rough In

• Determine that the building main sanitary drain, branches, and venting systems are sized adequately, graded and properly supported and protected from damage.
• Ensure that trap arms for drains, lavatories and sinks are the proper lengths.
• Ensure that storm/condensate drains are sized adequately; of approved materials and joints; supported and protected from damage, and directed to an approved outfall.
• Determine that the water distribution system is sized adequately; of approved materials and joints; supported and protected from damage and freezing, complete with all the required valves and access.
• Ensure that cleanouts are provided where required on all drain systems and are accessible.
• Ensure that all the materials used are compatible with each other (pipe, hangers, nail plates, joints, etc.).
• Ensure that the washing machine drain pans, when required, have a direct drain with a suitable discharge location.
• Ensure that, when required, the septic system relief vent pipe is installed.
• Ensure that, when required, the pressure reducing valves are in the proper place.