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Detecting Leaks in Inground Pools: A Step-by-Step Guide

By Team Royal - Updated On: 09/25/24

How To Find A Leak In An Inground Pool

Detecting a leak in your inground pool is crucial for maintaining water levels, ensuring pool safety, and avoiding costly repairs. Whether you’re dealing with minor water loss or suspect a more significant issue, identifying the source of the leak early on can save time and resources. This guide outlines the essential steps for locating and addressing leaks in your pool, helping you keep your pool in optimal condition.

 

 

 

Identifying Common Signs of a Pool Leak

  • Unexplained water loss: If you notice your pool is losing water at a faster rate than normal evaporation, it could be a sign of a leak.
  • Damp areas around the pool: Moist or soggy spots near the pool deck or in the surrounding area may indicate water escaping from the pool.
  • Fluctuating chemical levels: A significant drop in your pool’s chemical balance, especially when not related to recent weather changes or maintenance, might suggest a leak.
  • Air in the pump system: Bubbles coming from the return jets or air in the pool pump could signal a leak in the plumbing.
  • Visible cracks or gaps: Inspect the pool structure for any cracks, gaps, or loose tiles that might be contributing to water loss.

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The Bucket Test: Confirming Your Suspicions

  1. Fill a bucket with pool water: Take a bucket and fill it with water from the pool, making sure to match the water level inside the bucket with the water level in the pool.
  2. Place the bucket on a step: Position the bucket on a pool step so that the water levels inside and outside the bucket are even.
  3. Mark the water levels: Use a marker or tape to mark the water levels on both the inside and outside of the bucket.
  4. Wait 24 hours: Allow the bucket to sit for 24 hours without any pool use or disturbances.
  5. Compare the water levels: After 24 hours, compare the water levels. If the pool water level has dropped more than the water inside the bucket, you likely have a leak.

 

Surface and Tile Inspection

  1. Inspect the pool liner or surface: Carefully examine the pool liner, plaster, or surface material for any visible tears, cracks, or damage that could indicate a leak.
  2. Check around the skimmers and returns: Focus on areas around the skimmers, return jets, and pool lights, as these are common spots for leaks.
  3. Look for loose or missing tiles: Inspect the tiles around the pool’s waterline for any that are loose, cracked, or missing, which could be a sign of a leak.
  4. Examine the grout and caulking: Ensure the grout between the tiles and the caulking around the pool's edge is intact, as deteriorated grout or caulking can lead to water seepage.
  5. Test the pool lights and fittings: If you suspect a leak around the pool lights or other fittings, check for any signs of corrosion or water behind the light fixtures.

 

Checking the Plumbing System

  1. Inspect the pump and filter area: Start by checking the pump, filter, and heater for any visible signs of water leakage, such as wet spots or puddles around the equipment.
  2. Listen for unusual sounds: Turn on the pump and listen for any hissing or gurgling noises, which could indicate a leak in the plumbing.
  3. Check the return lines: Walk along the path of the return lines and inspect for any wet spots or areas where the ground is soft, which could signal a buried pipe leak.
  4. Examine the skimmer and suction lines: Look closely at the skimmer and suction lines for any signs of cracking, gaps, or loose connections that could be causing water loss.
  5. Pressure test the plumbing: If you’re unable to locate the leak visually, consider performing a pressure test on the plumbing system to identify the exact location of the leak.

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Advanced Techniques: Using Dye Testing

  1. Prepare the dye: Purchase a pool dye testing kit or use food coloring as an alternative. Make sure the pool is calm and the water is still.
  2. Target suspicious areas: Release the dye near suspected leak sites such as cracks, fittings, or around skimmers and returns.
  3. Observe the dye movement: Watch closely as the dye moves; if it gets drawn into a crack or gap, this indicates the presence of a leak.
  4. Mark the location: Once you’ve identified the leak, mark the area so you can focus on repairing it later.
  5. Repeat if necessary: If the first test is inconclusive, repeat the process at different locations to ensure all potential leaks are detected.

 

When to Call a Professional

  1. Extensive water loss: If your pool is losing more than a few inches of water per week and you can’t locate the source, it’s time to consult a professional.
  2. Inaccessible leaks: Leaks in underground plumbing or hard-to-reach areas should be handled by experts with specialized equipment.
  3. Complicated repairs: If the leak involves structural damage or complex repairs, a professional can ensure the job is done correctly.
  4. Persistent issues: If you’ve tried to locate and fix the leak yourself without success, a professional can provide a thorough inspection and solution.

 

How To Find a Leak in an Inground Pool - Frequently Asked Questions

  • How often should I check my inground pool for leaks? 

    It’s recommended to check for leaks at least once a season or if you notice any unusual water loss.

  • Are there seasonal considerations for pool leaks? 

    Yes, temperature changes and ground shifts during different seasons can cause or worsen leaks.

  • What are the long-term risks of ignoring a small leak in my pool? 

    Ignoring a leak can lead to more severe structural damage, higher water bills, and expensive repairs.

  • Can changes in weather cause or worsen leaks in my pool? 

    Yes, weather conditions such as heavy rain, freezing temperatures, and ground settling can exacerbate existing leaks or create new ones.

  • How can I prevent future leaks in my inground pool? 

    Regular maintenance, prompt repairs, and routine inspections can help prevent future leaks in your pool.

Filed Under:

Repairs, How-To, Inground Pools

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