Ok, I'm a DIY virgin and seriously need help!! The overflow pipe from my toilet system is constantly running outside into the garden, as the ballcock (!?) when raised is not stopping the water filling the system. This i think is cos the blue "nut" (?) is leaking. Am going to attempt to replace the mechanism. Is this wise or stupid and if wise, how easy is it to do? Would really appreciate any help / advice!!
Thank you
Thank you