Pool Leak Cost Calculator | How Much Is Your Leak Costing?

Water Loss

Water Loss (gallons per day)

1 inch drop in a 15x30 pool = ~280 gallons. Use the bucket test calculator to measure.

Local Costs

Water Cost (per 1,000 gal)

Sewer Cost (per 1,000 gal)

Many utilities charge sewer based on water usage

Repair Estimates

Leak Detection Cost ($)

Estimated Repair Cost ($)

Typical: $300-$1,500 depending on location

Cost of This Leak

Monthly Cost of Ignoring

Daily Cost

Annual Cost

Gallons Wasted/Year

Payback Period

The Math

Enter your water loss above.

The Real Cost of Pool Leaks

Most pool owners underestimate how much a leak costs because they only think about water. But the real expense includes chemical replacement, potential structural damage, and the compounding cost of waiting.

Hidden Costs Beyond Water

Chemical replacement: Every gallon of fresh water dilutes your existing chemistry. You're constantly adding chlorine, acid, and stabilizer to compensate.
Increased pump runtime: Autofill systems mask leaks but the pump works harder to maintain water level.
Structural damage: Water leaking behind walls or under decks erodes soil, causing settling, cracking, and expensive structural repairs.
Deck damage: Saturated soil under decks causes heaving, cracking, and trip hazards.
Higher water bills: Some areas have tiered pricing where excess usage jumps to 2-3x the base rate.

Common Leak Sizes

Small leak (50 gal/day): About 1/4" per day in a typical pool. Often goes unnoticed for months.
Medium leak (100-200 gal/day): 1/2" to 1" per day. Noticeable but often attributed to evaporation.
Large leak (300+ gal/day): 1"+ per day. Obvious water loss, autofill running constantly.

Why Autofill Systems Hide Leaks

An autofill keeps the water level constant, so the homeowner never sees the pool dropping. The only symptom is a higher water bill months later. As a pool pro, check autofill valve activity at every service visit. If it's running frequently, investigate.

When to Act

Any consistent water loss beyond normal evaporation should be investigated. Normal evaporation is 1/4" to 1/2" per day depending on conditions. If you're losing more than that consistently (confirmed by the bucket test), it's time for leak detection.

Frequently Asked Questions

How much does leak detection cost?

Professional leak detection typically costs $250-$400 for a residential pool. This includes pressure testing all plumbing lines, electronic listening devices, and dye testing at suspect areas. Most companies guarantee they'll find the leak.

How much do leak repairs typically cost?

It depends on location. Equipment pad leaks: $150-$400. Skimmer or return fitting: $300-$600. Underground plumbing: $500-$1,500. Shell crack: $300-$800. The detection cost is separate from repair.

Can I find the leak myself?

You can narrow it down. Run the bucket test with pump on and off to determine plumbing vs. shell. Check equipment pad connections visually. Use food coloring at suspected areas (returns, skimmer, lights) and watch for the dye to get pulled toward the leak.

Does insurance cover pool leak repair?

Usually no. Most homeowner's insurance excludes pool leaks under the "maintenance" exclusion. However, if the leak causes secondary damage (foundation issues, interior flooding), that damage may be covered. Check the specific policy.

How do I sell leak detection to a hesitant customer?

Show them the math. "Your pool is losing 100 gallons a day. That's $45/month in water alone, plus $20/month in chemicals. In 6 months you'll have spent more on wasted water than the detection and repair combined." This calculator helps you make that case.

Track Water Levels at Every Visit

PoolDial's service logs track water level changes over time so you catch leaks early, before they become expensive structural problems.

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