Rapid water filtering, uses a conventional tire valve fitted to the water container, for an air pump to build up pressure and force the water through an active carbon filter for immediate use

摘要

To give a rapid filtering action to drinking water, using a filter (3) containing active carbon, the water container (1) is fitted with a conventional non-rusting tire valve (2), for an air pump (4) to build up the required pressure to force the water through the filter for filtration.