Pool Leak Detection That Finds What Wasting Water Hides

A pool that loses more than an inch or two of water a week has a leak, and adding water is not a fix. We test the shell, plumbing and equipment to find the source, so the repair is targeted instead of expensive guesswork.

  • Shell, Plumbing & Equipment
  • Non-Invasive Testing
  • Clear Findings
Technician performing pool leak detection
15+
Years of Experience
12,000+
Leaks Located & Repaired
BBB Accredited Business
BBB Accredited
Award winning service
Award-Winning Service
Why It Matters

A Leaking Pool Costs More Than Water

Chasing a pool leak with a hose masks the real problem while it gets worse. Early detection protects your equipment, your deck and your water bill.

Wasted Water & Chemicals

Constant refilling wastes water and unbalances your chemistry, costing you money every week.

Equipment Strain

Air pulled into a leaking suction line makes the pump work harder and can cause failure.

Deck & Soil Damage

Water escaping underground can undermine decking, cause settlement and soften surrounding soil.

Pool leak detection equipment at the poolside
Dye TestAnd pressure test
The Service

How Pool Leak Detection Works

Pool leaks fall into two broad categories: leaks in the structure or fittings, and leaks in the plumbing. We separate those possibilities through a structured test sequence rather than guessing.

We start with a bucket test to confirm the pool is losing more water than simple evaporation explains. Then we inspect the shell, skimmer, light niches, return fittings and main drain for cracks and gaps, often using a dye test that shows water being pulled into a leak. For the plumbing, we pressure test individual lines. If a line will not hold pressure, we locate the break with acoustic and electronic tools so only the affected run is excavated, not the whole yard.

  • Bucket test to confirm a true leak versus evaporation
  • Shell and fitting dye testing at every penetration
  • Pressure testing of suction, return and cleaner lines
  • Marked location and a clear explanation of findings
Request Pool Leak Detection
Common Sources

Where Pool Leaks Usually Happen

We know the high-probability spots, and we check every one during an inspection.

Skimmer Throat & Body

Cracks around the skimmer are among the most common pool leaks, especially in older concrete and vinyl pools.

Light Niches

The seal around a pool light is a frequent leak point and often hidden below the waterline.

Return Fittings

Cracked or loose return fittings let water escape into the surrounding soil or shell.

Underground Plumbing

Buried suction and return lines crack from ground movement or age, leaking under the deck.

Shell Cracks

Structural cracks in plaster, gunite or vinyl liners allow water to seep out of the pool.

Equipment & Valves

Pump seals, heater connections, valves and backwash lines can leak around the equipment pad.

We Test Them All

Pools, Spas and Water Features

Leak testing is not one-size-fits-all. The methods adjust to the type of water feature on your property.

In-Ground Pools

We test the shell, fittings, skimmer and buried plumbing. Concrete, plaster and vinyl pools each have characteristic leak points that we check in order.

Above-Ground Pools

Above-ground pools leak at seams, through the liner and at inlet or outlet fittings. We inspect these areas and pressure test any plumbed lines serving the pool.

Spas & Hot Tubs

Spas leak at jet fittings, heater unions, pumps and the shell. We test the equipment and shell together to separate a plumbing issue from a structural one.

Water Features

Fountains, waterfalls and spillways use pumps and hidden lines that can leak. We trace their plumbing and test joints the same way we test a pool circuit.

Equipment Pads

Pumps, filters, heaters and valves are inspected for weeping seals and loose unions, which are a frequent source of unexplained water loss.

Autofill & Overflow Lines

Autofill valves and overflow drains can stick or leak, quietly wasting water at a rate that is easy to mistake for evaporation.

Warning Signs

Signs Your Pool or Spa Is Leaking

Some signs are easy to spot; others only show up over days. Any of these warrant a professional test.

Dropping Water Level

Losing more than an inch or two a week is the classic sign of a pool leak.

Loose or Wobbly Rail

Handrails and ladders can loosen when water erodes the deck around their anchors.

Pump Losing Prime

A pump that loses prime or pulls air often has a leak on the suction side.

High Chemical Use

Needing more chemicals than usual can mean fresh water is constantly replacing lost water.

Wet or Sunken Deck

Soft, sinking or unusually wet deck areas point to water escaping beneath them.

Visible Cracks

Cracks in the shell, tile line or skimmer are direct evidence of a possible leak.

Soft Spots in Yard

Soggy or sinking spots near the pool can mark a leaking underground line.

Air Bubbles at Returns

Bubbles coming from return jets usually indicate air entering through a suction-side leak.

Our Process

Pool Leak Detection, Step by Step

Systematic testing that separates structural leaks from plumbing leaks.

Confirm the Leak

A bucket test and history check tell us whether the pool is truly losing water abnormally.

Test the Shell

We inspect and dye test the shell, skimmer, lights and fittings at every penetration.

Pressure Test Plumbing

We isolate and pressurize each line to find which run will not hold pressure.

Locate & Report

We narrow the leak to a specific area and explain the repair options clearly.

Our Technology

Testing Methods for Pool and Spa Leaks

We use several complementary methods so the leak is confirmed, not just suspected.

Dye Testing

Dye introduced near cracks and fittings is drawn toward an active leak, revealing it visually.

Pressure Testing

Each plumbing line is plugged and pressurized to prove whether it holds or leaks.

Acoustic Listening

Ground microphones pick up the sound of water escaping a buried line under the deck.

Electronic Line Location

Transmitters trace buried pool plumbing so we excavate only the affected section.

Pool leak inspection in progress
TargetedNot guesswork
Why Choose Us

We Test the Whole System, Not Just the Obvious

Pool leaks can be deceptive. Water entering a buried line can surface far from the actual break, and a leak in one area can masquerade as a problem in another. We test the shell and the plumbing separately so we can tell you exactly what is leaking and where.

That precision saves you money. Instead of excavating a large area of deck or replacing equipment that is not the problem, you get a specific finding and a targeted repair. We explain what we tested, what the results were, and what we recommend next.

  • Shell and plumbing tested separately
  • Multiple methods for confirmed findings
  • Minimal excavation guided by line location
  • Clear findings and honest repair advice
Learn About Our Team
Related Services

Help for the Rest of Your Property

Pool lines are not the only ones that leak. These services cover the rest of the system.

Pipe leak detection

Pipe Leak Detection

Locate leaks in any pipe system, including irrigation and service lines.

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Water leak detection

Water Leak Detection

Find hidden water leaks behind walls, under floors and underground.

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Slab leak detection

Slab Leak Detection

For leaks beneath a foundation, often discovered thanks to an unrelated high bill.

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FAQ

Pool Leak Detection Questions

A pool can lose roughly a quarter inch per day to evaporation, more in hot, dry or windy weather. If you are losing an inch or more per day, or two inches or more per week, a leak is likely.

The bucket test compares water loss in the pool with water loss in a bucket of pool water sitting beside it. Because the bucket loses only to evaporation, a bigger drop in the pool indicates a leak.

Yes. We pressure test each line to find which one is losing water, then use acoustic and electronic locating to pinpoint the break so only a small area needs to be excavated.

Yes. We test spas and hot tubs for shell leaks, fitting leaks and plumbing leaks using the same methods we use on pools.

A typical inspection takes one to two hours. Pools with multiple lines or suspected multiple leaks can take longer, and we share findings as we go so there are no surprises when the report is complete.

It can. Escaping water can undermine decking, cause soil settlement and, in severe cases, affect nearby structures. Finding and fixing the leak early prevents that progression.

Keep the water level normal to protect the pump, avoid aggressive chemical additions, and note how much water you add and when. Those details help us confirm the leak rate.

Is Your Pool Losing Water?

Get a professional, non-invasive leak test and a targeted repair plan. Free estimates available.