Optimization
Commercial Controller Programming
Zone level schedules built around real plant demand, soil type, and infiltration rate.
On this page
Overview
What commercial controller programming involves
Controller programming determines when each zone runs, for how long, and how often. It is the highest leverage and lowest cost adjustment available on any irrigation system, and it is the thing most commonly left exactly as it was set the day the system was installed.
What is included
- Run times set per zone based on plant type, exposure, and soil
- Cycle and soak scheduling on slopes and clay soils to prevent runoff
- Watering windows set for early morning to minimize evaporation and disease
- Frequency matched to root depth, favoring deeper and less frequent watering
- Rain sensor and weather input verified as actually functioning
- Program documented so the schedule is not lost when staff change
- Property team walkthrough covering how to make basic adjustments
Programming by zone, not by percentage
The most common way a controller is adjusted is with a global percentage: everything up twenty percent for summer, everything down for winter. It is quick and it is wrong.
Zones do not scale together. A shaded courtyard bed and a sunny turf area have different curves through the year. Moving both by the same percentage keeps the shaded area over watered in every season.
Programming by zone means each zone has its own run time based on what it waters, its exposure, and its soil. It takes longer to set up once and produces a system that is right rather than uniformly approximate.
- A run time set per zone, based on what that zone actually waters
- Start times staggered so zones do not compete for pressure
- Cycle and soak on slopes and clay rather than one long run
- Watering early, well before sunrise, to reduce evaporation and disease
- Seasonal adjustment per zone rather than one global percentage
Cycle and soak, the free improvement
On a slope or on clay soil, a long irrigation cycle mostly runs off. The soil cannot absorb water as fast as it is being applied, so the surplus goes down the slope and into a gutter.
Cycle and soak splits the same total run time into shorter cycles with gaps between them. Each short cycle applies water at a rate the soil can take, and the gap lets it absorb before the next one.
The total water applied is identical. The proportion that reaches the root zone is much higher, which usually means the total can then be reduced.
It costs nothing but programming time and it is one of the few genuinely free improvements available in irrigation.
Keeping the programme once it is right
A carefully set programme has a way of quietly disappearing, and the causes are consistent.
A power cut on an older controller wipes the schedule and reverts to a default. Somebody runs a manual cycle and leaves the controller in manual. A valve gets replaced and the zone assignment changes without the programme being updated. A contractor changes and the new crew adjusts things without knowing why they were set that way.
Two habits prevent almost all of it. Record the programme as set, on paper and in the site file, so it can be restored rather than reinvented. And check the controller after every power interruption, valve replacement, and crew change.
Who this serves
- Property managers who answer for the water bill
- Facilities directors tracking utility spend across a campus
- HOA managers facing a rising water budget and board questions
- Regional managers who want the same water standard at every site
- Owners with sustainability or ESG targets to report against
How We Work
Our process
System audit
We run every zone and watch what happens: where the water lands, the pressure, the state of each head, any leaks, and how the controller is set. Most systems have not been run and watched in years.
Findings and prioritization
You get a report that splits urgent leaks and breaks from tuning work and longer term upgrades, with a note on what each one is worth in water.
Repair and correction
Breaks get fixed first. No amount of clever scheduling makes up for a snapped head or a leaking line.
Programming and optimization
Controllers are reset to match what each zone actually needs, season by season, instead of the one schedule most systems have run since the day they went in.
Ongoing monitoring and reporting
Zones get checked on the regular maintenance visits. If you want it, we send water use reporting you can hand straight to an owner.
Questions
Frequently asked questions
What is cycle and soak?
Instead of one long run, the zone runs several short cycles with soak time between them. It exists because soil can only absorb water at a certain rate. On clay soil or a slope, a single long run produces runoff across the hardscape while the root zone stays dry. Splitting it lets each cycle absorb before the next begins.
When should commercial irrigation run?
Early morning, generally in the few hours before sunrise. Evaporation is lowest, wind is usually calmest, and foliage dries as the sun rises. Evening watering leaves the canopy wet overnight, which is a leading contributor to turf disease. Midday watering loses a significant share to evaporation.
Is watering deeply and less often really better?
Yes, for established plantings. Frequent shallow watering trains roots to stay near the surface where they dry out fast and become dependent on constant irrigation. Deeper, less frequent watering drives roots down, which makes plants far more resilient during heat events and any watering restriction.
Looking for the full service area? Back to Commercial Irrigation Services
More irrigation services services
- Zone Balancing and OptimizationCorrecting pressure, nozzle mismatch, and coverage gaps so schedules can finally be accurate.
- Commercial Irrigation RepairHead, valve, line, and controller repairs with each zone re-run to confirm correct operation.
- Commercial Irrigation System AuditsZone by zone evaluation of coverage, pressure, and programming with quantified saving opportunities.
- Commercial Smart Controller UpgradesWeather based scheduling, remote management, and flow alerts that reduce water use measurably.
- Commercial Irrigation InstallationCorrectly zoned, properly pressurized systems built for the plant material they will actually water.
- Commercial Irrigation Design SupportHydraulic planning, zoning strategy, and specification review before anything gets trenched.
Get Started
Ready for consistent commercial landscape maintenance?
Work with a team that knows what managing commercial property is like. Clear standards, the same crews, and a record of every visit.
Or call (562) 203-3567. Mon to Fri, 7:00am to 5:00pm.