10/07/2026
Pressure, Flow, Friction Loss & Zone Capacity 💧
A sprinkler problem is not always a sprinkler problem. An irrigation system may be affected by:
• Static pressure: pressure when water is not flowing
• Dynamic pressure: pressure while the zone is operating
• Flow: the volume of water the source and piping can deliver
• Friction loss: pressure lost as water moves through pipe, fittings, valves, and elevation changes
• Zone capacity: the amount of irrigation equipment a zone can operate without exceeding available flow
Correct pipe sizing, hydraulics, and zone design help prevent weak coverage, misting, uneven application, and poor system performance.
Silva’s Landscaping provides irrigation design, troubleshooting, and landscape care in Exeter and surrounding Tulare County communities. Licensed & Insured. CA Contractor License #1068650. Certified Ornamental Horticulturist.