Thanks Tony.
I have had a few plumbers in who scratched their heads at my setup and one mentioned that my tank is lying down which is wrong. Would this need to change as I have no room to replace it with an upright one. That being the case I might as well update the whole lot as its 18 years...
I have a 4 bed two bathroom house with 10 rads. I have a floor standing Potterton which is about 18 years old. The issues I am having are below;
1. The overflow pipe from the CH header tank in the loft is leaking to outside. The ball is working fine but the water exceeds this and overflows...