Swimming pool and spa leaks can develop in almost any component where water flows, enters, exits, or sits over time. Cracks, holes, and material fatigue often occur as equipment ages or experiences stress beyond original design limits.

Some leaks are obvious. Others are far more subtle and more difficult to confirm. Identifying the difference early can help prevent larger repairs and ongoing water loss.

Is It a Leak or Normal Water Loss?

Pool water levels naturally fluctuate due to weather and usage. Humidity, wind, air temperature, and water temperature can cause evaporation of up to ¼ inch per day, or roughly two inches per week.

That said, certain warning signs point to a leak rather than normal evaporation.

Common Signs of a Pool Leak

You may have a pool leak if you notice:

• Pump equipment losing prime or air entering the system (such as bubbles under the pump basket lid or from return jets)
• Visible cracks below the waterline
• Pool decking lifting or sinking
• Persistently soggy areas around the pool

Significant overnight water loss almost always indicates a problem, and needing to add water more than once a week may also point to a leak. Smaller leaks develop slowly but can still cause serious damage if left unaddressed.

Causes of Pool Leaks

Pool leaks can happen for a variety of reasons as materials age or components experience stress from weather, usage, or ground movement. Some of the more common causes include:

• Aging plumbing lines that crack or loosen underground
• Structural cracks in gunite or concrete pool shells
• Vinyl liner tears or seam separation
• Worn seals or gaskets around fittings and equipment
• Loose or damaged return fittings, skimmers, or drains

Even small issues can lead to steady water loss over time. Professional pool leak detection helps pinpoint the exact source so repairs can be completed before the problem causes more extensive damage.

Over 40 Years of Leak Detection Experience

For four decades, Chaikin Ultimate Pools has been finding and repairing leaks in pools and spas across Long Island. Our team is known for getting results, even on the trickiest or hardest-to-find leaks. As a partner of LeakTronics, we use their professional leak detection equipment along with diagnostic methods refined through years of hands-on pool maintenance and repair work.

Our leak detection work commonly involves:

• Underground pool plumbing and plumbing slabs
• Gunite, vinyl-lined, fiberglass, and PVC-lined pools
• Spas (freestanding and pool/spa combinations)
• Landscape ponds and water features
• Underground line location

How We Find Pool Leaks

For accurate inspection, keep the pool water clean, clear, and warm enough for diving if required. Upon arrival, unless the leak is immediately visible, we typically begin with pressure testing to determine whether the issue originates in the plumbing or the pool structure. From there, additional diagnostic methods may include electronic detection and in-water inspection.

During the inspection, our technicians:

• Review the pool information provided before the visit and perform a detailed visual inspection of the pool, deck, and equipment
• Pressure test plumbing lines and pinpoint underground plumbing leaks
• Inspect niches, fittings, structural cracks, and potential liner leaks

Once we confirm the source, we review repair options with the client before starting any work.

Repairing Pool Leaks

After identifying the issue, our team can complete a range of repairs depending on the type and location of the leak. Common repairs include vinyl liner patching or replacement, plumbing repairs, structural crack repair, and renovation work related to leak correction.

Addressing leaks quickly helps protect the pool structure, surrounding areas, and equipment from further damage.

Preparing for Professional Leak Detection

To help us prepare for your visit, please be ready to share a few details when you call. This includes when you first noticed the water loss, whether the issue involves a pool only or both a pool and spa, and any prior leak repairs you may have had.

It also helps to know the approximate age of the pool, the type of pool you have (Gunite, fiberglass, or vinyl-lined), and the results of any bucket test showing estimated water loss or whether the water level stabilizes at a certain point.

Our technicians may also ask about:

• Equipment location (above or below grade)
• Number of pumps and skimmers
• Whether water loss changes with the system on or off

This information lets our technicians arrive prepared and work efficiently.

Leak Detection as Part of Long-Term Pool Maintenance

Leak detection is an important part of regular pool maintenance and weekly pool service. Catching problems early can prevent damage, save water, and avoid costly repairs down the line, which helps your pool stay in top shape for years to come.

If you suspect your pool may be leaking, early detection can prevent extensive repairs and water loss. Contact Chaikin Ultimate Pools today to schedule professional pool leak detection anywhere in Long Island, Nassau County, Suffolk County, or the Hamptons.