F&J Estate and Facilities Management

20/03/2026

Wooden go up that 👀

20/02/2026

10/02/2026

25/01/2026

This diagram illustrates a multi-story plumbing system, specifically focusing on how air is circulated to ensure sewage flows correctly and sewer gases are safely removed.
In plumbing, the movement of water creates pressure changes. Without proper venting, a "siphon effect" could pull water out of the toilet traps, allowing sewer smells into the building. This system prevents that using two main components: Primary and Secondary ventilation.

1. PRIMARY VENTILATION (GREEN PIPING)
The primary system is the main "highway" for both waste and air.
• Waste Stack: This is the vertical pipe that collects waste from the toilets on the 2nd, 1st, and ground floors.
• Waste Stack Extension: This is the top portion of the green pipe that continues through the roof. It is open to the outside air.
• Building Drain: At the bottom, the waste stack turns horizontal to carry sewage out of the building to the sewer or septic system.
• Function: It uses gravity to move waste down while providing a basic path for air to follow the flow of water, preventing a vacuum from forming.

2. SECONDARY VENTILATION (RED PIPING)
The secondary system acts as a "bypass" or relief system. It is dedicated strictly to air, not waste.
• Vent Stack: The vertical red pipe that runs parallel to the waste stack.
• Vent Branches: These are the horizontal red sections that connect the area near each toilet to the vent stack.
• Function: When a toilet is flushed, it creates a sudden rush of water. The secondary vent provides an immediate source of air to the fixture, ensuring the air pressure remains equalized. This prevents "gurgling" and ensures the water seal in the toilet trap stays intact.

25/01/2026

25/01/2026

Sharp lines for a sharp entrance. ☺😘😗 Our crew is out here putting the final touches on this high-contrast geometric walkway. The dark borders paired with the light gray inlays create a modern, "floating" effect that leads perfectly to the front door.