Quick answer: If your sprinklers pulse, lose pressure partway through a zone, or leave orange stains on the siding, the problem is often the well pump or pressure tank and not the sprinkler system. Replacing heads will not fix it.
Why Well-Fed Systems Act Differently
A sprinkler system on municipal water gets steady pressure from the street. A system on a private well makes its own. The pump pushes water into a pressure tank, the tank feeds the zones, and a pressure switch tells the pump when to start and stop. When any one of those three parts is off, the symptom shows up out in the lawn. A lot of irrigation west of Route 9 in Lacey Township runs this way.
Five Problems We See Most
1. Short-cycling
The pump clicks on and off every few seconds while a zone is running. The usual cause is a pressure tank that has lost its air charge or become waterlogged. Short-cycling wears out the pump motor quickly, so it is worth fixing as soon as you hear it.
2. Pulsing spray
Heads rise, throw a strong arc, sag, then come back. That rhythm follows the pump turning on and off. It points to the same tank problem, or to a zone that uses less water than the pump delivers.
3. A zone that will not reach
If the last heads on a long zone barely pop up, the zone may be asking for more gallons per minute than the well can supply. The fix is on the irrigation side: split the zone or change to lower-flow nozzles.
4. Rust-colored staining
Iron in the groundwater leaves orange marks on fences, pavers, and siding. It does not hurt the sprinkler system, but it is hard to remove. Adjusting head position and arc keeps spray off the house, and filtration can be added where staining is severe.
5. Sand and sediment
Fine sand from the well clogs nozzles and screens and wears out rotor gears. If you are cleaning the same heads every few weeks, a filter ahead of the valves usually solves it.
Is It the Pump or the Sprinklers?
A quick test: run one zone and watch the pressure gauge at the tank. If the needle swings up and down between the pump’s on and off settings every few seconds, the issue is upstream. If the gauge holds steady and one area of the lawn is still dry, the issue is in that zone.
What We Fix and What Needs a Well Contractor
We diagnose and repair everything on the irrigation side, including zone design, nozzles, valves, filters, and the way the system is matched to the well’s output. When the pump or the well itself has failed, we will tell you plainly that it is a job for a licensed well contractor.
Before Winter
A well-fed system needs the pump, tank, and any filter drained along with the zones. That is covered in winterizing a well-fed irrigation system.
Get It Diagnosed
See our well-fed irrigation repair page for Lacey Township, or read well water vs. city water for irrigation if you are weighing a change. Call or text 609-548-5187.