Patent ID: 8318011

Claim:
A portable water purification apparatus comprising: (a) a first chamber into which water to be purified may be drawn through an entrance by negative pressure and isolated for immersion in a disinfecting agent, (b) a second chamber slidable within the first chamber, said second chamber having an outlet and an inlet through which water in the first chamber is transferred by a positive pressure, (c) a pre-filter connectable to said apparatus such that water to be purified is passed through said pre-filter prior to entering the first chamber through said entrance, said pre-filter alternatively connectable over the outlet of the second chamber so as to enable clean water to be passed through the pre-filter in a reverse direction to aid in removing debris and contaminants from said pre-filter so that the pre-filter can be reused, (d) at least one micro-filter provided in said second chamber through which water is passed prior to exiting the second chamber through said outlet, and (e) a container securable over the pre-filter when the purification apparatus is not in use, said container also being usable to receive and collect potable water passed through said apparatus.