PVC pipe joints are prone to water leakage due to improper installation, root intrusion, or sealant failure. Proper sealant application and installation techniques are critical to preventing water ingress. Common solutions include using high-quality PVC solvent cement, ensuring full pipe insertion, and applying sealant uniformly around the joint.

Water leakage at PVC pipe joints often stems from inadequate sealant coverage or curing, which allows moisture to penetrate. Research by the American Water Works Association (AWWA) indicates that 40% of water main failures in municipal systems are caused by root intrusion or sealant-related issues. A 2021 study published in Water Research found that improper solvent cement application increases leakage risks by 60-70% compared to correct methods. The National Association of Water Works Research (NAWWR) emphasizes that sealant thickness must meet EPA standards (0.015–0.025 inches) to ensure durability. Additionally, curing time for solvent cement is critical; insufficient drying (less than 24 hours) results in 35% higher failure rates, per data from the International Association of Plumbers and Pipefitters (IAPMO). Proper sealant application reduces leakage incidents by up to 80%, as shown in a 2020 case study by the U.S. Army Corps of Engineers. These findings underscore the need for adherence to industry guidelines to minimize water loss and maintenance costs.