Pool Pump Running but Losing Water? Possible Causes and Solutions

August 7, 2026

If your pool pump is running normally but your pool continues losing water, it is easy to assume the pump is causing the problem. In reality, the pump is often just one part of a larger circulation system where hidden leaks can occur. While some water loss from evaporation is normal—especially during the hot Las Vegas summer—a pool that requires frequent refilling may have a leak that needs professional attention.

Finding the source of the water loss early can help prevent higher water bills, unnecessary chemical use, equipment damage, and costly repairs. Hound Dog Leak Detection specializes in locating hidden pool leaks using advanced diagnostic equipment and proven testing methods.

Infinity pool overlooking a desert valley and mountains under a clear sky

Is It Evaporation or a Leak?

Every swimming pool loses some water through evaporation. High temperatures, low humidity, wind, and heavy pool use can all increase water loss.

However, if your water level drops noticeably every few days or you find yourself constantly adding water, the loss may be greater than normal evaporation. A simple bucket test can provide a general indication of whether your pool may have a leak, but it cannot identify where the leak is located.

If excessive water loss continues, a professional inspection is often the next step.

Hidden Plumbing Leaks

Many pool leaks occur underground in the plumbing system.

Water travels through a network of pipes connecting the pool to the pump, filter, heater, and other equipment. Over time, fittings, joints, or underground pipes can develop leaks that allow water to escape whenever the system is operating.

Because these leaks are hidden beneath concrete or landscaping, they usually cannot be found through a simple visual inspection.

Equipment Can Leak Too

Not every leak is underground. Pool pumps, filters, valves, and other equipment contain seals and connections that can wear with age.

Sometimes these leaks only occur while the circulation system is running, making them difficult for homeowners to notice. A professional inspection includes the entire equipment pad as well as the pool itself to ensure every potential leak source is evaluated.

Using Dye to Locate Structural Leaks

If the plumbing system appears to be functioning properly, technicians may perform a dye test.

A specialized dye is placed near suspected leak locations, including cracks, skimmers, return fittings, lights, and other penetrations in the pool shell. If water is escaping, the dye is drawn toward the leak, allowing technicians to pinpoint the exact location.

This simple but effective technique helps identify structural leaks that may not be visible during a routine inspection.

Leakalyzer Technology Provides Accurate Measurements

Hound Dog Leak Detection also uses the Leakalyzer® Rapid Water Loss Sensor, an advanced electronic device designed to measure very small changes in water level.

The Leakalyzer helps determine whether water loss is consistent with normal evaporation or indicates an active leak. When combined with isolation testing and dye testing, it provides valuable information that allows technicians to diagnose pool leaks accurately and efficiently.

Get Answers Before Water Loss Becomes a Bigger Problem

If your pool pump is running but your water level continues to drop, do not assume it is simply evaporation. Hidden plumbing leaks, equipment failures, or structural issues may all contribute to ongoing water loss.

Hound Dog Leak Detection provides professional pool leak inspections throughout the Las Vegas area using advanced diagnostic tools, including isolation testing, dye testing, and the Leakalyzer® Rapid Water Loss Sensor. Our experienced team accurately identifies the source of the leak so repairs can be made efficiently, helping protect your pool, equipment, and investment.

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Can a Small Pool Leak Damage Your Pool Structure or Equipment?

September 21, 2026

A small pool leak may not seem urgent. If the water level drops slowly, it can be tempting to simply add more water and assume the problem can wait. Unfortunately, even a relatively small leak can create larger problems when it continues over time. Water escaping from a pool shell, plumbing line, fitting, skimmer, or equipment connection does not simply disappear. It can move into the surrounding soil, interfere with water chemistry, and affect how pool equipment operates. In Las Vegas, where homeowners already expect some water loss from evaporation, distinguishing normal evaporation from an actual leak is especially important.

Swimming Pool Leak Detection in Las Vegas: Why Local Experience Matters

September 8, 2026

Pool water loss in Las Vegas can be difficult to interpret. High temperatures, low humidity, wind, heavy pool use, and normal evaporation can all cause the water level to drop. At the same time, an actual leak can quietly waste significant amounts of water if it is not identified. That is why local experience matters. A leak detection specialist who understands Southern Nevada conditions is better positioned to separate normal environmental water loss from patterns that deserve further testing.

How to Check for a Pool Leak Before Calling a Professional

September 1, 2026

Pool water levels naturally rise and fall, especially in Las Vegas. Heat, wind, low humidity, splashing, and normal evaporation can all cause water loss. However, if you find yourself repeatedly adding water to the pool, notice an unexplained increase in your water bill, or receive a continuous-flow notification from your water provider , a leak may be worth investigating. Before calling a professional, homeowners can perform several simple checks that may help determine whether the water loss appears normal or whether professional pool leak detection is the next step.

How the Leakalyzer Helps Hound Dog Leak Detection Find Pool Leaks Faster

August 25, 2026

When a swimming pool is losing water, the first question is not always “Where is the leak?” Before searching plumbing lines, fittings, lights, skimmers, or the pool shell, it is important to determine whether the pool is actually losing water at an abnormal rate. Hound Dog Leak Detection uses the Leakalyzer® Rapid Water Loss Sensor as part of its diagnostic process throughout Las Vegas and Southern Nevada. The device provides precise, real-time information about water loss, helping technicians confirm whether a leak exists and develop a more focused plan for locating and addressing it.

How Weather Changes in Las Vegas Can Affect Your Pool and Cause Water Loss

August 21, 2026

Pool water levels naturally rise and fall, but Las Vegas weather can make those changes especially noticeable. Extreme heat, low humidity, wind, and sudden temperature shifts can all increase evaporation. At the same time, unusual water loss can also signal a leak. The challenge for homeowners is knowing when changing weather is responsible and when the pool needs professional testing. Hound Dog Leak Detection helps Las Vegas-area pool owners distinguish normal evaporation from active water loss using professional tools and targeted leak detection methods.

Do Spas and Hot Tubs Leak? Common Spa Leak Problems and How They Are Found

August 12, 2026

Yes, spas and hot tubs can leak, and the source is not always obvious. Because these systems contain multiple fittings, jets, pumps, valves, plumbing lines, and seals packed into a relatively small area, even a small failure can lead to steady water loss. For homeowners in Las Vegas and throughout Southern Nevada, unexplained water loss deserves attention. Hound Dog Leak Detection helps identify leaks in pools, spas, and connected water systems using professional diagnostic methods designed to narrow down where the problem is occurring before repairs begin.

Pool Leak Inspection FAQs: What to Expect During a Professional Leak Detection Service

August 3, 2026

If your swimming pool seems to be losing more water than normal, you may be wondering whether evaporation is to blame or if you have an actual leak. While some water loss is expected, excessive water loss can lead to higher utility bills, damage to your pool or surrounding property, and unnecessary water waste—an especially important concern in Southern Nevada. At Hound Dog Leak Detection, we use specialized equipment and proven diagnostic techniques to accurately identify the source of pool leaks. Here are answers to some of the questions homeowners ask most often about the inspection process.

Pressure gauge on pool filtration system with pipes beside a swimming pool, outdoors.