Can anyone talk me through the procedure for changing the pressure relief valve on our Worcester 28cdi boiler....... thanks in advance.... Eric
(I need to change it after it worked to relieve the pressure after I left the filler tap in situ - now the PRV is dripping - I gather it's usual for them not to re seat properly)
(I need to change it after it worked to relieve the pressure after I left the filler tap in situ - now the PRV is dripping - I gather it's usual for them not to re seat properly)