Pressure relief pipework is constantly dripping. Pressure is just over 2 bar but not over the red arrow on the presure gauge.

Any advice on stopping the dripping?

Dave, August 2009

start off by replacing the valve. be aware though that the pressure gauge may be faulty. unless you have manually opened the valve then make sure that the filling loop is off after use and re-pressurise the expansion vessel as the valve wouldn't have started leaking for no reason.

Ian, August 2009

Replace the pressure relief valve Dave - they are notorious for not shutting off fully once opened. Cost around a tenner.

John, August 2009