Where Does a Pool Skimmer Usually Leak? Pool Leak Detection and Repair in Manitoba

A leaking pool skimmer is one of the most common and frustrating problems for pool owners. If you’ve noticed your pool water level dropping or see wet spots around your pool deck, your skimmer could be the culprit. Understanding where and why a pool skimmer leaks—and how to fix a leak—can save you time, money, and water. This article explains the most common leak areas, how to spot a pool skimmer leak, and why Leak Detection Manitoba is your trusted local expert, using Leaktronics’ industry-leading leak detection equipment. Read on to keep your swimming pool in top shape all season.

Why Are Pool Skimmers a Common Leak Area?

Pool skimmers are essential for keeping your swimming pool clean, but they’re also a frequent source of pool leaks. The most common pool leak happens where the plastic skimmer meets the concrete pool wall. This joint, known as a “cold joint,” is prone to separation and cracks over time due to soil movement, freeze/thaw cycles, and general wear and tear. Even small shifts in the ground or poor initial installation can open gaps that allow water to leak from your pool.

Another common problem is cracks in the skimmer body itself. Over time, plastic components can become brittle or damaged, especially with Manitoba’s temperature swings. If you have a vinyl pool, improper gasket installation or tears in the liner around the skimmer can also cause leaks.

Where Exactly Does a Skimmer Leak Happen?

Most skimmer leaks occur in these specific areas:

• Where the skimmer meets the pool wall: Cracks or gaps can form between the plastic skimmer and the concrete or vinyl pool wall, letting water escape.
• The skimmer throat: The narrow section connecting the skimmer basket to the pool is another weak point, especially if there are cracks or separation from the wall.
• Skimmer body or box: Cracks in the plastic skimmer box itself can develop due to age, shifting soil, or freeze/thaw cycles.
• Skimmer gasket: In vinyl pools, a misaligned or damaged gasket between the skimmer and pool wall can cause leaks.

How Can You Tell If Your Pool Skimmer Is Leaking?

Signs of a pool skimmer leak include:

• Pool water level drops to the bottom of the skimmer throat or just below it.
• Persistent wet spots or soft ground near the skimmer area.
• Visible cracks or gaps around the skimmer, especially where it meets the pool wall.
• Air bubbles in the pool pump basket or return lines.
• Needing to add water to your pool more often than usual.

If you notice any of these, it’s time to inspect your skimmer closely.

What Causes Skimmer Leaks?

Several factors contribute to pool skimmer leaks:

• Soil movement: Manitoba’s freeze/thaw cycles cause the ground to shift, stressing the joint between the skimmer and pool wall.
• Aging materials: Plastic skimmers and gaskets can become brittle or cracked over time.
• Improper installation: If the skimmer wasn’t installed with a secure, watertight seal, leaks are more likely to develop.
• Chemical exposure: Pool chemicals can degrade plastic and sealants if not properly balanced.

How Do You Find a Skimmer Leak?

Start with a visual inspection around the skimmer. Look for cracks, gaps, or signs of water seepage where the skimmer meets the pool wall or at the skimmer throat. If you suspect a leak but can’t see it, a dye test is a simple and effective method:

1. Turn off the pool pump and let the water become still.
2. Add a small amount of dye or leak detection dye near the suspected leak area.
3. Watch to see if the dye is pulled into a crack or gap—this indicates a leak.

If the leak is underground or in the plumbing, more advanced leak detection methods—like pressure testing and electronic listening devices—may be needed. Leak Detection Manitoba uses Leaktronics’ state-of-the-art equipment to pinpoint even hidden leaks quickly and accurately.

What About Plumbing Leaks Near the Skimmer?

Leaks can also occur in the pool plumbing connected to the skimmer. The skimmer line, which carries water from the skimmer to the pool pump, can develop leaks at joints, fittings, or underground sections. Pressure testing is often used to check for leaks in these lines. If you see water loss when the pump is off, or notice wet spots around the pool deck, a plumbing leak may be the cause.

How Do You Fix a Pool Skimmer Leak?

The repair depends on the location and severity of the leak:

• Small cracks or gaps: Pool putty or a high-quality underwater sealant can be used to fill minor cracks where the skimmer meets the pool wall. This is often a temporary fix.
• Damaged gaskets: For vinyl pools, replacing the skimmer gasket or properly reseating it can stop leaks.
• Large cracks or failed skimmer: If the skimmer body is cracked or separated from the pool wall, professional repair or replacement may be needed. This can involve excavating around the skimmer and reinstalling it with proper reinforcement.
• Plumbing leaks: Broken or leaking pipes may require cutting into the pool deck and replacing damaged sections.

Always ensure repairs are watertight and use materials rated for pool use.

Why Is Professional Leak Detection Important?

Pool skimmer leaks can be tricky to diagnose and repair, especially if they’re hidden or underground. Professional leak detection uses advanced tools like electronic listening devices, pressure testing, and dye tests to find a leak without unnecessary digging or damage. Leak Detection Manitoba’s technicians are trained to find and fix a leak quickly, saving you water, money, and hassle.

How Does Leak Detection Manitoba Help Pool Owners?

As Manitoba’s leading pool leak detection and repair specialists, we use Leaktronics’ industry-leading equipment for accurate, non-invasive leak detection. Our services include:

• Comprehensive pool leak detection, including skimmer, plumbing, and structural leaks.
• Dye testing and pressure testing to pinpoint problem areas.
• Professional repairs using durable, pool-safe materials.
• Expert advice on pool care and maintenance to prevent future leaks.

We’re committed to helping you keep your pool in top condition all season long.

How Can You Prevent Skimmer Leaks in the Future?

• Regularly inspect your skimmer and pool wall for cracks or gaps.
• Maintain balanced pool chemistry to prevent damage to plastic and sealants.
• Address soil movement or drainage issues around your pool.
• Schedule annual pool leak detection with professionals to catch issues early.

Key Takeaways

• The most common pool skimmer leak is where the plastic skimmer meets the pool wall, especially in in-ground pools.
• Cracks in the skimmer throat, body, or gasket can also cause leaks.
• Signs of a skimmer leak include water loss, wet spots, and visible cracks.
• Dye tests and professional leak detection are the best ways to find a leak.
• Small leaks can be fixed with pool putty or sealant; major leaks may require professional repair or replacement.
• Leak Detection Manitoba uses Leaktronics equipment for fast, accurate leak detection and repair across Manitoba.
• Regular inspections and maintenance help prevent future leaks and keep your swimming pool in top shape.

If you suspect a pool skimmer leak, contact Leak Detection Manitoba for expert help and reliable repairs!