Water drips from the safety valve discharge pipe, especially when heating.

Safety: The safety valve is a critical protection device. Never block or plug the discharge pipe.

Steps:

• Determine if dripping is normal: Small intermittent drips during heating can be normal as water expands. Continuous flow indicates a problem.
• Check mains pressure: If building pressure is high (>6 bar), install a pressure reducing valve and, if required by local codes, an expansion vessel on the cold inlet.
• Test safety valve: Operate the test lever on the Eldom safety/pressure relief valve to flush debris. If it continues to leak, replace the valve.
• Replace valve: Isolate water, relieve pressure by opening a hot tap, then unscrew the old valve and install a new Eldom-compatible safety valve with PTFE tape on threads.