Spring Hill Sprinkler Repair A sprinkler zone won't shut off: the fix and the cost
A zone that keeps running well past its scheduled stop time is a valve that is not fully closing, not a controller malfunction. The controller sends the same stop signal whether the valve obeys it or not, so a continuously running zone means something inside the valve itself is preventing a full seal.
Check this first (five minutes)
- Confirm the controller actually sent the stop signal. Check the controller’s display; if it shows the zone as off or moved to the next station while water is still visibly running, that confirms the valve, not the controller, is the problem.
- Look for a manual shutoff. Most valve boxes have a small bleed screw or manual override on top of the solenoid that lets you manually close the valve without cutting power to the whole system. If you can safely access it, this stops the waste immediately while you wait for a repair.
- Check whether it is one zone or the whole system. A single zone that will not stop points at that valve specifically. Every zone staying on, or the system never fully shutting down, points at something further upstream and is worth mentioning when you call.
- Note how long it has been running. This matters for estimating water waste, and for deciding whether it is worth checking the water bill spike page once the immediate repair is done.
What is usually wrong
| What you notice | Likely cause | Fix and cost |
|---|---|---|
| Zone runs continuously, controller shows it as off | Torn diaphragm, valve stuck slightly open | $150-$350 |
| Zone runs at reduced pressure long after schedule | Debris partially blocking valve seat | $150-$350 |
| Valve will not respond to manual shutoff either | Valve body failure | $200-$450 replacement |
| Valve box stays full of water even when off | Same underlying cause, different symptom | See the valve box page below |
These sit inside the valve repair range on the pricing page, on top of the $75 to $150 service call.
Why this matters more than it might seem
A valve that will not close does not just run up your water bill for the hours it stays on. It also means that zone is watering outside Hernando County’s current Southwest Florida Water Management District Modified Phase III schedule, which limits every address to one legal watering day and a specific overnight or evening window. A stuck-open valve that runs into the next day, or runs on a day that is not your assigned day at all, puts the property out of compliance through no fault of the homeowner’s own scheduling, which is one more reason to treat this as a same-day call rather than something to watch for a few days.
If the valve box itself stays visibly full of water even when the system is fully off, that is the same underlying failure with a different symptom; see the valve box full of water page. For the full repair scope, see Irrigation Valve Repair.
Where we work
On site across Spring Hill, Brooksville, Weeki Wachee, Hudson, Masaryktown, Ridge Manor, Timber Pines, and Hernando Beach.
Frequently Asked Questions
My sprinklers keep running long after the scheduled time. What's wrong?
Almost always a valve that will not fully close: a torn diaphragm or debris stuck in the valve seat holding it slightly or fully open. It is much less commonly a controller problem, since the controller is only responsible for sending the stop signal, not for the valve mechanically obeying it.
Is this urgent, or can it wait?
Worth calling about the same day if you can. Every hour it runs wastes water and money, and it also puts you out of compliance with the county's one-day-a-week watering schedule if it keeps a zone running past its legal window.
Can I manually shut it off myself right now?
Yes, usually. Most systems have a shutoff valve or you can manually close the specific zone's valve at the valve box (turn the solenoid's manual bleed screw, or shut the main supply if you cannot access the specific valve safely) until a technician arrives.
What does it cost to fix?
$150 to $350 for a valve repair (new diaphragm, cleared debris, or a new solenoid), or $200 to $450 if the valve body itself needs full replacement.