Why should sprinkler heads have head-to-head coverage?
Short answer: Because a single sprinkler does not water evenly across its whole spray pattern, so neighboring heads need to overlap. Head-to-head coverage means each head’s spray reaches the next head, and that overlap is what makes the watering even instead of patchy.
Proper sprinkler spacing allows neighboring spray patterns to overlap so the entire lawn receives more even irrigation. That is the core of the design: no single head is expected to water its whole circle by itself.
A sprinkler puts down the most water close to the head and the least at the far edge of its spray. When heads are spaced head-to-head — the spacing between heads equals the throw radius, which designers call 50% overlap — the thin outer edge of one head’s pattern is filled in by the heavy inner part of the next head’s pattern. The two patterns add up to an even application across the middle.
Spacing heads wider than their throw radius is the most common reason for dry stripes between heads. The heads can all be working perfectly and the lawn still shows brown lines, because the gap between the patterns never gets enough water. Running the zone longer does not fix it either — it just over-waters the areas near the heads while the gap stays dry.
What we check in Kingwood
This is a design question we see on new installs and on older systems that were laid out with too few heads. We run the zone, watch where the spray actually lands, and check whether the heads are spaced head-to-head or stretched too far apart. If the spacing is wrong, the fix is adding or moving heads — not running the water longer.
Related reading: Sprinkler Installation in Kingwood · All questions · Contact us
Learn more: Hunter Pro-Spray PRS40 — pressure-regulated spray bodies for MP Rotators
Frequently asked questions
How far apart should sprinkler heads be?
As a rule, the spacing between heads should equal the throw radius of the heads — a 15-foot head spaced 15 feet from the next head. That is head-to-head coverage, and it is the industry standard for even watering.
Can I fix dry stripes by running the sprinklers longer?
Usually not. If the heads are spaced too far apart, extra runtime over-waters the grass near the heads and still leaves the gap between them short. The spacing has to be corrected first.
Do you serve Kingwood?
Yes. Orion’s Rain serves Kingwood and the Lake Houston area — Kingwood, Atascocita, Porter, Humble, New Caney, Summerwood, Fall Creek, Huffman, and Eagle Springs. Call or text (281) 504-9998, 24 hours a day.
Related questions
- Why does my lawn have dry spots even though the sprinkler system runs?
- Why does grass block the spray from a sprinkler head?
- Why does my sprinkler head not spray far enough?
Get it looked at
If this sounds like your yard in Kingwood, call or text Orion’s Rain at (281) 504-9998 — 24 hours a day. We will test the system and tell you what is actually wrong, and what it will take to fix it the right way.
Orion’s Rain Smartscapes and Exteriors — (281) 504-9998 — LI0029444
Sources: Head-to-head spacing = spacing equal to throw radius (50% overlap); application heaviest near head, thinnest at edge — Drip Atlas, “Head-to-Head Spacing: Why Your Coverage Matters” (dripatlas.com); UseCalcPro sprinkler coverage calculator.