A well-maintained swimming pool provides endless enjoyment and relaxation, but even the most carefully cared-for pools can develop leaks over time. Among the common challenges faced by pool owners and leak detection specialists are leaks that occur near buried unions—connections that join different sections of piping beneath the surface. These leaks are often overlooked because they are hidden from plain sight and can be difficult to identify without thorough inspection. Understanding the typical points of failure around buried pool unions and knowing how to detect and repair these leaks can save time, money, and prevent further damage to the pool’s structure and equipment.
Common Overlooked Leak Points Near Buried Pool Unions
Leaks near buried pool unions are frequently missed because these fittings are located underground and are not easily visible during routine inspections. Over time, the joints around these unions can loosen or degrade due to soil shifting, corrosion, or thermal expansion and contraction of the piping. Small cracks or leaks may develop at the connection points, especially if the unions were not properly sealed during installation or if the gasket or O-ring has deteriorated. Additionally, the area around buried unions can accumulate debris or soil, obscuring signs of leakage such as wet spots, soft ground, or pool water loss. Because these points are often concealed beneath the surface, leaks here are easily overlooked until they cause noticeable drops in water level or increased utility bills.
Tips for Detecting and Repairing Hidden Pool Leaks at Unions
Detecting leaks near buried unions requires a systematic approach. Start with visual inspection by carefully checking the pool’s water level over time and observing any damp patches or soft spots on the ground around the suspected area. Using dye tests can help pinpoint leaks by introducing a non-toxic dye near the union area and observing whether it seeps into any cracks or openings. Pressure testing the piping system can also reveal leaks; by isolating sections and monitoring pressure drops, technicians can identify which part of the line is compromised. When repairing leaks at buried unions, it’s important to excavate carefully to access the fittings without causing additional damage. Replacing worn gaskets, tightening fittings, or installing new unions with proper sealing materials can restore integrity. In some cases, applying flexible sealants or epoxy around the joint may provide a temporary fix, but a thorough repair involving replacement of faulty components is recommended for long-term reliability. Regular maintenance and inspection can help prevent leaks from developing near these critical connection points, ensuring the longevity and proper functioning of the pool system.