Went and had lunch with my sister over near Uckfield. (East Sussex) She had cooked a very nice lasagna with a mixed salad.
I fixed her toilet set for the third time as the casting for one of the hinges had fractured. Looks like some kind of monkey metal. Several washers later and fixed.
I've just done a Google search and it looks like hinge sets are readily available at a reasonable price so if it goes again we'll just get some new parts. No need to scrap the entire seat and lid.