What are core considerations in plumbing design for the project?

• A. Domestic water supply, waste and vent systems, fixture counts, water efficiency
• B. Structural steel connections
• C. Landscape irrigation design
• D. Fire alarm system design

Answer: (A)

Plumbing design focuses on providing a safe potable water supply, proper drainage with venting, and planning for fixture usage and water efficiency. Ensuring a reliable domestic water supply means adequate pressure, clean delivery, and protection from contamination. Waste and vent systems create a reliable path for wastewater while venting prevents trap siphonage and sewer gas from entering spaces. Fixture counts, based on occupancy and expected use, drive the sizing of both water distribution and drainage systems to handle peak demand. Water efficiency ties these elements together by guiding the selection of low-flow fixtures and efficient water-heating strategies to meet code requirements and sustainability goals. The other options relate to different disciplines (structural connections, landscape design, or fire protection) and are not central to plumbing design.