The
aim of the handwashing prototype is to ensure waterborne diseases
are not passed from one person to another while dispensing
a small amount of water at a time.
The
device must be effective in providing sufficient storage of
water to wash the hands of say 10 children in between fillings
and deliver just enough water, or other liquid to enable hands
to become germ free after using the toilet. It should preferably
be operated in such away that it is not contaminated
by dirty hands during its use.