The Crown's loo is now officially twinned with one in San Juan Moca in Guatemala.
The scheme, organised by the folk at Toilet Twinning ,
funds work of international relief and development agency Tearfund.
Donations are used to provide clean water, basic sanitation, and hygiene education in areas where there is a need.
Toilet Twinning say "This vital combination works together to prevent the spread of disease. Children are healthier, and able to go to school; parents are well enough to work their land and grow enough food to feed their family. With better health, and more ability to earn a living, men and women discover the potential that lies within them to bring transformation.
Family by family, community by community, nation by nation, we are flushing away poverty. "
If you'd like to take part visit the website www.toilettwinning.org.