Common Sprinkler System Problems and How to Fix Them

A properly functioning sprinkler system is essential for maintaining a healthy and attractive landscape. However, even the best systems can experience occasional issues that lead to uneven watering, dry patches, or water waste. Being able to identify and resolve these common problems quickly ensures your lawn and garden stay green, vibrant, and efficient year-round. Below, we explore four of the most frequent sprinkler system problems and how to address them effectively.

1. Clogged or Broken Sprinkler Heads

Sprinkler heads can become clogged with dirt, grass clippings, or debris, causing uneven spray or no water output at all. In high-traffic areas, they can also be damaged by lawn equipment or foot traffic, leading to leaks or complete failure. To fix this, you should regularly inspect each head and clear away any buildup with a soft brush. If the head is cracked or leaking, replacing it with a matching model will restore proper operation and water distribution.

2. Low Water Pressure

Low pressure results in weak water output and inconsistent coverage. This can stem from partially closed valves, underground leaks, or excessive demand from multiple zones operating at once. Begin by checking that the main water supply and backflow prevention valves are fully open. If the pressure issue persists, examine the system for any visible leaks or signs of underground pipe damage. Reducing the number of zones that run simultaneously may also help maintain steady pressure across the system.

3. Leaky Valves or Pipes

Leaks in valves or pipes can cause water to pool in certain areas and lead to wasted resources and higher utility bills. These leaks are often due to worn-out seals, cracked pipes, or shifting soil that damages underground components. To address this, inspect valve boxes for signs of constant moisture or erosion and listen for running water when the system is off. Once a leak is identified, the damaged section may need to be resealed or replaced entirely to prevent further water loss and system inefficiency.

4. Inefficient Programming or Faulty Timers

Sprinkler systems with outdated or poorly configured controllers may overwater or underwater your lawn. This is especially problematic during seasonal transitions when plant water needs change. Check the controller settings and adjust the schedule based on current weather conditions and landscape requirements. If the timer is malfunctioning or inconsistent, replacing it with a smart controller can improve efficiency by automatically adapting to weather patterns and soil moisture levels.

Keep Your System Running at Its Best

Sprinkler system issues can often go unnoticed until they affect your landscape’s health or your water bill. By identifying these common problems and taking swift action, you’ll ensure your system runs smoothly and efficiently. For complex issues, professional help ensures long-term reliability and landscape protection.

Leafs U Green, based in Acton, California, brings over 30 years of experience in landscape services, specializing in sprinkler system installation, repair, and maintenance. Our skilled technicians diagnose and resolve sprinkler issues with precision—ensuring optimal performance and long-lasting results for your landscape.