---
title: "Pool Leak Detection: Signs, Tests & When to Call a Pro | Pool Pros"
url: https://poolpros.ai/learn/pool-repair/how-to-detect-pool-leak
description: "Losing water faster than normal? Learn how to detect a pool leak with the bucket test and when to call a professional leak detection company."
lang: en
---

Pool Repair Hub (https://poolpros.ai/learn/pool-repair)

# How to Tell If Your Pool Is Leaking

Pools naturally lose water to evaporation - typically ¼ inch per day. But if you're losing more than that, you may have a leak in the shell, plumbing, or equipment.

## Signs of a Pool Leak

Water level dropping more than ¼ inch per day, unexplained increases in your water bill, wet spots in the yard near pool plumbing, air bubbles in the return jets, or cracks in the pool deck can all indicate a leak.

## The Bucket Test

Place a bucket on the pool steps, filled to match the pool water level. Mark both levels. After 24 hours, compare - if the pool level dropped more than the bucket, you likely have a leak. Run this test with the pump both on and off to narrow down whether the leak is in the plumbing or shell.

Pro Tip

Run the bucket test on a calm day without rain for the most accurate results.

## Common Leak Locations

Most pool leaks occur at the skimmer, main drain, return fittings, light niches, or underground plumbing. Vinyl liner pools often leak at seams and fittings. Concrete pools may leak through cracks in the plaster.

## Professional Leak Detection

Professional leak detection companies use pressure testing, electronic listening devices, dye testing, and sometimes cameras to pinpoint leaks precisely. Expect to pay $200-$500 for professional detection, which is worth it to avoid unnecessary digging.

### Ready to Take Action?

Pool Repair: https://poolpros.ai/pool-repair

Get Leak Detection Quotes: https://poolpros.ai/get-a-quote

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