On 08/04/2021 12:54, Harry Bloomfield wrote:
Andrew laid this down on his screen :
I once used neat 1001 carpet cleaner to remove a nasty stain from
a berber mottled light brown carpet, so there.

..and I once used tomato ketchup to remove a water stain down the
outside wall, where an overflow had been dripping for some time.

The French use British brown sauce to clean their brass.