Potable Water Distribution System Riser Diagram with Dual Storage

Potable Water System Overview

This riser diagram illustrates a complete potable water distribution system for a multi-story building with dual water storage configuration. The system features:

Storage Components:
– 600-liter vertical stainless steel water tank at lower level
– 600-liter horizontal stainless steel water tank at roof level
– Strategically positioned to maintain consistent pressure throughout the building

Distribution Network:
– 1½” ID PPR upfeed supply riser transferring municipal water to storage tanks
– 2″ ID PPR water line downfeed distributing from tanks to building fixtures
– Bypass line to maintain water supply during maintenance operations
– Dedicated connection to rentable spaces

Mechanical & Control Elements:
– 0.5HP booster pump to maintain pressure requirements
– Isolation valves at strategic points for sectional control
– Gate valves (GV), check valves (CV), and pressure-reducing valves (PRV)
– Pressure switch (PS) and pressure gauge (PG) for system monitoring

The diagram clearly delineates various building levels including natural grade line, finish floor line, second floor line, ceiling lines, roof deck line, and roof apex line. This configuration ensures optimal water pressure and flow throughout the structure while providing redundancy in water storage capacity.