Hi everyone, I decided to repaint an area of wall recently because it had quite a few marks on and stains from bleeding the radiator. I found the paint in the garage and started but realised I'd have to do the whole wall so it didn't look funny. Unfortunately, part way though I realised I was making it worse - despite mixing it well the paint had separated (couldn't tell in the tin) and now the wall has a brownish tinge! Note to self: do not use 9 year old paint! Does anyone have any suggestions of what to do next? The wall colour is quite pale so I'm not sure if the brown will show through/seep through. Should I just do lots of coats or try to remove the brown-tinged paint first? Thanks!