The cistern on our 30 year old close-coupled WC cistern is cracked at
the corner of one side and the font and leaking. This will undoubtedly
mean a new WC but I am wondering if I can make a temporary repair to get
us over the next two weeks.

I have drained it and am letting it dry out at the moment. The interior
is has a fairly rough surface and I wonder if it would be feasible to
cover the cracked area with Araldite and some sort of material to make a
'plaster'. Or would a viable alternative be something like car body
filler?
--
Robert