lude wrote:and from todays BBC 7 day quiz,
CORRECT! It's aluminium foil. A cheap way to remove rust from steel is to rub it with aluminium foil dipped in water
The Aluminium oxides and the rust reduces to iron.
They use rust and fine aluminum powder to weld railway lines together.
The rust turns to liquid iron joining the ends together !
So try dangling some bacofoil in your tank.
I think only a gynaecologist would stand any chance of using that method
