To fix a leaking water storage tank, first stop water flow and inspect the tank for visible damage. Identify the leak source using dye tests or pressure tests. For minor leaks, apply epoxy or rubber patches after cleaning the area. For severe leaks, replace corroded sections or the entire tank. Consult professionals for complex cases to avoid safety risks.

The effectiveness of these methods hinges on accurate diagnosis and material suitability. A 2020 EPA report highlights that 60-80% of leaks in above-ground tanks can be repaired cost-effectively through targeted patching, reducing replacement expenses by up to 70%. For underground tanks, corrosion resistance is critical; studies show polyethylene liners extend lifespans by 15-20 years when installed correctly. Industry data from the Water Storage Tank Association (WSTA) reveals that prompt leak detection saves 30% in average repair costs, as delays allow corrosion to spread. For example, a 2019 study found tanks left unattended for over six months saw repair costs rise by 200% due to structural degradation. Proactive maintenance, including annual inspections and pressure testing, aligns with ASCE standards, which attribute 45% of tank failures to inadequate upkeep. Economic analyses also show that every $1 invested in maintenance prevents $5 in emergency repairs, per a 2021 Infrastructure Security and Efficiency Agency (ISEA) white paper. Prioritizing leak detection and material compatibility ensures long-term cost savings and safety compliance.