How to Check Your Water Meter for Leaks: A Simple DIY Guide

Think you might have a hidden water leak? Before calling a professional, there's a simple test you can do yourself using your water meter. This DIY method can confirm whether water is leaking somewhere in your plumbing system—even if you can't see or hear it.

What You'll Need

• Access to your water meter (usually located near the street in a covered box)
• A screwdriver or meter key to open the cover (if needed)
• A notepad and pen, or your phone to take photos
• About 30 minutes to 2 hours of time

Step 1: Turn Off All Water in Your Home

Make sure every water source is completely off:

• All faucets (kitchen, bathroom, outdoor)
• Dishwasher and washing machine (don't run during the test)
• Ice maker in your refrigerator
• Irrigation/sprinkler system
• Any water softeners or filtration systems

Important: Make sure no one uses any water during the entire test period.

Step 2: Locate Your Water Meter

In most Central Florida homes, the water meter is located near the street in a rectangular concrete or plastic box with a lid. You may need a screwdriver to pry open the cover. Be careful—sometimes insects or small animals make their home in these boxes.

Step 3: Check the Flow Indicator

Most water meters have a small triangular dial or a small silver wheel called a "flow indicator." This moves when water is flowing through the meter.

With all water off, watch the flow indicator for 1-2 minutes.

• If it's moving: You likely have a leak somewhere in your system.
• If it's still: Move on to the next step for a more thorough test.

Step 4: Record the Meter Reading

Write down the numbers on your meter (or take a photo). Note the exact reading, including any decimal points or small digits.

Step 5: Wait and Recheck

Don't use any water for at least 30 minutes—ideally 1-2 hours for a more accurate test. Then return to the meter and check the reading again.

• If the numbers changed: Water flowed through the meter while everything was off. You have a leak.
• If the numbers are the same: Good news! No leak detected in your main plumbing system.

What If You Find a Leak?

The meter test confirms you have a leak, but it doesn't tell you where the leak is. The leak could be:

• Under your slab (slab leak)
• In a wall or ceiling
• In your irrigation system
• In the underground line between the meter and your house
• A running toilet (the most common culprit!)

Pro tip: Before calling for professional leak detection, check your toilets. Add a few drops of food coloring to the tank and wait 15 minutes. If color appears in the bowl without flushing, your toilet is leaking.

When to Call a Professional

If your meter test shows a leak but you can't find the source, it's time to call a leak detection specialist. At Active Leak Solutions, we use advanced equipment—thermal imaging, acoustic listening devices, and moisture meters—to pinpoint exactly where the leak is located without tearing up your property.

We specialize in detection only, so you get an unbiased assessment. Once we find it, you're free to hire any plumber you trust for the repair.