Black clay in Bexar County takes water slowly and then holds it. One long rotor cycle runs off the surface and never reaches the roots. Cycle-and-soak — two or three short passes with rest in between — is the schedule that actually works here.
Stone Oak yards mix clay with limestone and caliche, so a program copied from a wetter part of Texas will overwater beds and still burn the parkway.
Starting run times
Spray zones on clay often land around 8–12 minutes, split in two. Rotor zones need longer total runtime but still split so the second pass can soak. Drip should never share a turf program. Shade under live oaks needs a separate, shorter station.
Finish before 8 a.m. Evening watering in a humid San Antonio stretch leaves St. Augustine wet overnight and invites fungus. HOA windows in Stone Oak usually force the same early-morning slot — we program to the allowed days, not against them.
Why heads and nozzles have to match first
A perfect schedule on mismatched nozzles still makes a brown stripe. We match precipitation rates, then set the clock. That is why a watering-schedule call often becomes Sprinkler Head Replacement on the same visit.
Seasonal adjust
July is not March. Use seasonal adjust (or a weather-based controller) instead of rewriting every station each month. After a front, a rain sensor should skip the cycle. If it does not, the sensor is bypassed or dead.
San Antonio conditions that change the repair
San Antonio irrigation lives with limestone, caliche, pockets of black clay, Edwards Aquifer hard water, and long hot summers. Those conditions scale nozzles, walk heads out of grade, and punish weak valves.
Stone Oak is in Bexar County. North SA master-planned communities with large multi-zone systems. That is why a generic statewide watering guide fails here — the soil does not take water the same way, and the mineral load is different.
Twice-yearly checkups (spring startup and a pre-freeze look at the backflow) catch buried heads and weak solenoids before they brown a lawn in July.
Related services
Our Sprinkler Head Replacement page covers how we handle this on a live system. If you are in Stone Oak, start with sprinkler repair in Stone Oak.
– Leak Detection & Line Repair
Browse the full services list or all San Antonio service areas.
Quick question
Can you mix Hunter and Rain Bird heads on one zone? Only if precipitation rates match. Mixing a 1.5-inch spray with a rotor on the same valve makes a brown stripe.
When to call
Call Sprinkler Repair Tech if a zone will not shut off, water is pooling toward a foundation, or half the yard is offline in Stone Oak heat. Those are same-week jobs. Tune-ups and audits book on the next route day.
We are a call-first repair company. Technicians carry solenoids, diaphragms, spray bodies, rotors, and nozzle trees so most Stone Oak repairs finish in one visit. You get a plain-language explanation of what failed and how to water the soil you actually have.
Photograph the controller program before any upgrade. Label the valve box once we find it. Those two habits prevent a lot of repeat Stone Oak calls after the next landscaper or freeze.