Precision Leak Detection

Precision Leak Detection We fix leaky pools.

06/25/2026

One of the best leak detection tools isn't expensive equipment—it's an air compressor.

On this commercial pool, I had to identify several unknown plumbing lines before I could pressure test them. Rather than guessing where each pipe went, I plugged the system and sent compressed air through each line.

Wherever the air came out told me exactly which plumbing line I was working with.

It's a simple technique, but it can save hours of troubleshooting and prevent you from pressure testing the wrong pipe.

Whether you're working on a residential or commercial pool, knowing how to identify plumbing lines is one of the most valuable skills in leak detection.

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06/25/2026

Sometimes a dye test tells you everything you need to know.

On this job, I found a massive structural leak around the pool's automatic filler line. As soon as I applied the dye around the PVC pipe, it was immediately pulled into the leak, making the source of the water loss impossible to miss.

This leak also explained the loud noise I had been hearing with my hydrophone during the inspection.

One thing many pool owners don't realize is that large structural leaks often produce much more noise than plumbing leaks because the water is escaping directly from the pool shell.

Watch the video to see one of the clearest dye tests you'll ever see.

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06/25/2026

💦 One of the most common reasons pool leaks go unnoticed is because of the automatic pool filler.

An auto fill is designed to keep your pool at the proper water level without you ever having to drag a hose into the backyard. It's a great convenience—but it can also hide a leak for weeks or even months.

As water leaks out of the pool, the auto fill simply replaces it. Your pool stays full, so you may never realize there's a problem until your water bill suddenly increases or the leak becomes much worse.

If your water usage has been climbing or you suspect your pool may have a hidden leak, don't ignore the warning signs.

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Precision Leak Detection

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06/25/2026

💦 Sealing a leaking spa light conduit isn't always as simple as it looks.

On this job, I used butyl tape to make the best repair I could without lowering the water level. The challenge is that many spa light niches are so small you can barely fit your hand inside, let alone see what you're doing. You're essentially working by feel as you pack the material around the electrical conduit.

While butyl tape can be an effective temporary repair, I typically recommend a marine-grade silicone like Loctite for a more permanent solution. Once the water level is lowered below the light, the silicone can be applied much more precisely and usually provides a longer-lasting seal.

Every pool is different, and choosing the right repair method depends on the location of the leak and the condition of the light niche.

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Precision Leak Detection

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06/24/2026

💦 Sometimes a plumbing line won't pressure test because of a leak... and sometimes it's simply because something was missed during setup.

On this job, the spa jets wouldn't build any pressure at all. At first glance, it looked like we might have a major plumbing leak.

After taking a closer look, we found the real problem.

This older spa didn't have an air blower—it used Venturi air lines instead. Those lines also have to be plugged before you can properly pressure test the spa jets. Once we sealed both Venturi lines, the plumbing immediately built pressure and held a perfect 15 PSI.

It's a great reminder that understanding how different spa systems work is just as important as having the right testing equipment.

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Precision Leak Detection

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06/24/2026

💦 Sometimes the biggest leak on the job is the one you find before you even begin testing.

While getting ready to pressure test this pool and spa, I always like to do a quick visual inspection of the drains, lights, and pool surface. On this job, that extra step paid off.

When I removed the spa light, I immediately found a massive leak behind the light niche. It looked like previous repair attempts had been made using epoxy and butyl tape, but those repairs had failed, allowing water to escape through the light conduit.

Interestingly, my hydrophone hadn't detected any obvious noise at the spa, which just goes to show that no single testing method tells the entire story. The best leak detection comes from combining visual inspections, dye testing, hydrophone testing, scuba inspections, and pressure testing to build the complete picture.

Finding this leak before pressure testing completely changed the direction of the inspection and gave us confidence that we had already identified a major source of the water loss.

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Precision Leak Detection
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06/24/2026

💦 Sometimes a pool leak gives itself away before you ever connect a pressure tester.

During this leak detection, I noticed something unusual while flooding the skimmer line with water. The skimmer housing had been completely dry when I arrived, but it slowly began filling with water even though the pool water level had already dropped well below the skimmer opening.

After taking a closer look, I found water actively flowing through the skimmer throat. That told me the area beneath the deck had likely become saturated with water from a leaking skimmer line, allowing water to push back into the skimmer housing.

Before I ever connected the air compressor, I was already fairly confident we had a broken skimmer line.

To confirm the diagnosis, we pressure tested the line with compressed air and listened for the leak underground.

This is a great example of how paying attention to small details can often point you toward the source of a pool leak before testing even begins.

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Precision Leak Detection
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06/24/2026

💦 Most skimmer leaks cause a pool to stop leaking once the water level drops below the skimmer opening. This pool didn't.

When we arrived, the water level had already fallen nearly 6 inches below the bottom of the tile. Normally, that would make you suspect a broken return line, a main drain leak, or even a structural leak somewhere lower in the pool.

What made this case unusual was that the leak was ultimately connected to the skimmer plumbing line.

This is a great example of why diagnosing pool leaks based on water level alone can sometimes be misleading. While water level behavior provides valuable clues, there are situations where a leak doesn't follow the patterns most pool owners would expect.

Watch the video to learn why this pool continued leaking well below the skimmer and what it can teach you about troubleshooting swimming pool leaks.

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Precision Leak Detection
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06/24/2026

Leaking skimmer line? You may not need a $1,500 repair.

In this video, I explain how many pool owners stop water loss from a broken skimmer line by installing a simple threaded cap with an O-ring and isolating the line from both ends.

This allows the pool to continue circulating using only the main drain while completely eliminating the leaking skimmer plumbing line from the system.

For many homeowners, this can be an effective alternative to excavating the deck and repairing underground plumbing.

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📞 Need professional leak detection?

Precision Leak Detection
https://precisionleakdetection.co

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Wellington, FL
33411, 33414, 33449, 33467

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