To reconnect a leaking geothermal system, first shut off power to the heat pump and drain the loop using a pump or gravity. Inspect the damaged components, such as corroded pipes or loose joints, and replace or tighten them. Apply pipe sealant to prevent future leaks. Reassemble the system, refill the loop with water, and conduct a pressure test using a soapy water solution to identify residual leaks. Restore power and monitor system performance for 24–48 hours. If leaks persist, consult a licensed technician.

Leaky geothermal systems require prompt repair to avoid energy waste and costly replacements. The U.S. Department of Energy (DOE) estimates that geothermal systems can reduce heating and cooling costs by 30–50% compared to traditional systems, but leaks reduce efficiency by up to 25%. A 2021 study by the Geothermal Energy Association found that undetected leaks increase maintenance costs by 15–20% annually due to frequent component failures. For example, a single漏 (leak) in the loop can waste 5–10 gallons of water daily, leading to water utility bills rising by $50–$100 monthly. The DOE also notes that 40% of geothermal system failures involve leaks, often caused by corrosion or poor installation. Reconnecting the system properly restores efficiency, ensures compliance with warranties, and maximizes the 15–20-year lifespan of the average geothermal unit. Proactive maintenance, including annual loop inspections and pressure tests, can prevent leaks and save homeowners $500–$2,000 in repair costs over time, as reported by the International Geothermal Association.