Simulate domestic water demand for a multi-story building using the IPC Hunter's Curve probability method. Configure building type, number of floors, and fixture types and counts per floor. The simulator aggregates WSFU floor-by-floor, converts to peak design GPM, sizes the service entrance pipe, and calculates static pressure loss due to elevation. A results panel shows whether available street pressure is sufficient or whether a booster pump is needed.
PDI G-101 hydromechanical grease interceptor sizing and gravity interceptor (GGI) volume calculator. Input fixture flow rates, grease retention factor, and pumping frequency to size the right interceptor for a commercial kitchen.
Interactive decision tree for selecting the correct backflow prevention device (air gap, RPZ, DCVA, PVB, SCVB) based on hazard degree (high vs. low), backflow type (back-pressure vs. back-siphonage), and application type.
Tally Water Supply Fixture Units and Drainage Fixture Units for 12 fixture types per IPC tables.
Size cold and hot water supply pipes from WSFU using Hunter's Curve demand flow and velocity limits.
NFPA 13 density/area method for 6 hazard classes. Total demand GPM, hose allowance, and residual pressure.
More plumbing design articles coming soon.