Well Runs Out of Water Every Day

When your well system isn't working right, every minute matters—especially if your family depends on well water for daily needs. This guide covers what's happening, why it's happening, and what you can do about it.

Understanding the Problem

This issue—runs out of water every day—is one of the most common calls we get from homeowners across San Diego County. It typically points to one of several root causes in your well system, from the pump itself to the pressure tank, control box, or even the well's water supply.

Most Common Causes

1. Pressure tank issues. A waterlogged pressure tank (failed bladder) is the #1 cause of erratic well behavior. When the air charge is gone, the pump has to cycle constantly, leading to surging pressure, sputtering water, and premature pump wear. Check by tapping the tank—if it sounds solid below the midpoint, the bladder has likely failed.
2. Failing pump. Submersible pumps typically last 8–15 years. As they wear out, they lose efficiency gradually—you'll notice reduced flow, pressure drops, and intermittent behavior before complete failure. Deep wells (300+ feet) in areas like Julian and Ramona put extra stress on pumps.
3. Low water level in the well. Southern California's ongoing drought conditions mean many wells are seeing lower static water levels than in previous decades. If your well is recovering slowly, you may experience intermittent water supply, especially during peak summer demand.
4. Electrical problems. Corroded connections, failing capacitors, or a malfunctioning pressure switch can all cause erratic pump behavior. The control box is especially vulnerable to heat damage during our hot San Diego summers.
5. Check valve failure. A bad check valve allows water to drain back down the well when the pump stops, losing prime and causing delays or air spurts when the pump restarts.

What You Can Check Yourself

• Pressure gauge: Watch the gauge while running water. It should drop steadily, the pump should kick on at the cut-in pressure (typically 30 or 40 PSI), and pressure should build back up smoothly. Erratic needle movement or rapid cycling indicates a problem.
• Breaker panel: Make sure the well pump breaker hasn't tripped. Reset once—if it trips again, do NOT reset. Call a professional.
• Visible leaks: Check around the pressure tank, all pipe fittings, and the wellhead for any signs of water leaking.
• Recent changes: Did this start after a power outage, nearby construction, or installing a new appliance? These clues help narrow the diagnosis.

Typical Repair Costs

Based on our experience servicing wells throughout San Diego, Riverside, and San Bernardino counties:

• Pressure switch replacement: $150–$300
• Pressure tank replacement: $400–$1,200
• Check valve replacement: $150–$400
• Control box replacement: $200–$400
• Submersible pump replacement: $1,500–$4,000+ (depth-dependent)
• Well rehabilitation: $2,000–$8,000

When to Call SCWS

Don't wait for a complete failure. If your well system is behaving erratically, it's telling you something needs attention. Early diagnosis almost always saves money—a $200 pressure switch replacement today beats a $4,000 emergency pump pull next week.

Our technicians carry diagnostic equipment and common parts on every truck, so many repairs can be completed in a single visit. We serve all of San Diego County, plus Riverside and San Bernardino counties including Temecula, Murrieta, Hemet, and the high desert communities.