My Pool Is Leaking. Should I Let It Leak Until It Stops?

If you've noticed your pool is losing water, you've probably heard the advice:

"Just shut the pool off and let it leak until it stops. Wherever the water level stops is where the leak is."

While this sounds logical, it is often misleading and can actually make it harder—and more expensive—to find the source of your pool leak.

At Seacoast Water Services, we perform professional pool leak detection throughout Massachusetts and New Hampshire, and we frequently encounter pools that have been allowed to leak for weeks before an inspection is scheduled. Unfortunately, waiting often creates additional problems that can complicate the leak detection process.

Why a Pool May Stop Leaking at a Certain Water Level

Many pool owners assume that when the water stops dropping, the leak must be located at that exact level. In reality, there are several reasons a pool can stop losing water even when the actual leak is located much deeper in the pool or plumbing system.

Some common examples include:

• Plumbing lines that only leak when the circulation system is running

• Cracked skimmers that leak differently depending on the water level

• Main drain leaks that only occur under certain conditions

• Structural cracks that change behavior as water pressure changes

• Light conduit leaks that can allow water to travel behind the pool shell

• Underground plumbing leaks that are completely unrelated to the final water level

Because of these variables, the water level alone rarely tells the entire story.

The Hidden Problem With Turning Your Pool Off

One of the biggest issues with the "let it leak" approach is what happens after the pump is shut down.

Without proper circulation and filtration, pool water can quickly become cloudy or develop algae growth. In many cases, pools that are left off for extended periods turn green.

This creates a major problem for professional leak detection.

To accurately locate leaks, we often need to:

• Perform underwater visual inspections

• Conduct dye testing

• Inspect fittings, returns, lights, skimmers, and drains

• Evaluate structural cracks and separations

• Use specialized leak detection equipment

When the water is green or cloudy, visibility is severely limited. We cannot see many of the areas that need to be inspected, making it difficult or impossible to perform a complete evaluation.

Professional Pool Leak Detection Relies on Testing, Not Guessing

At Seacoast Water Services, we do not guess where a leak might be located.

Professional swimming pool leak detection involves a systematic process of eliminating potential leak sources and confirming the actual cause of water loss.

Depending on the pool, this may include:

• Dye testing

• Underwater inspections

• Hydrophone testing

• LeakTrac testing

• Leakalyzer testing

• Pressure testing

• Camera inspections of underground plumbing

• Underground leak pinpointing

The goal is to identify the actual source of the leak—not simply develop a theory based on the water level.

What To Do If Your Pool Is Losing Water

If you suspect your pool has a leak:

1. Maintain normal water level whenever possible.

2. Continue circulating and treating the water.

3. Monitor the rate of water loss.

4. Schedule a professional pool leak inspection as soon as possible.

5. Avoid waiting weeks for the pool to "find its own level."

The earlier a leak is inspected, the easier it typically is to diagnose and repair.

Need Pool Leak Detection in Massachusetts, New Hampshire or Maine?

If your pool is losing water, don't wait until the water turns green or the leak becomes worse.

Seacoast Water Services specializes in professional pool leak detection, underwater inspections, plumbing leak testing, camera inspections, and leak repairs throughout Massachusetts, Southern New Hampshire, and Southern Maine.

We use proven diagnostic testing methods to accurately locate leaks so you can make informed repair decisions and avoid unnecessary excavation or guesswork.

If you've noticed unexplained water loss, contact Seacoast Water Services today to schedule a professional pool leak inspection.

These conditions make leak detection almost impossible