| 主权项 |
1. A point-of-use countertop water filtration system, comprising:
a support base; a first receptacle detachably disposed on the support base and configured to store source water, the first receptacle comprising an outlet port and an inlet port; a second receptacle detachably disposed on the support base and configured to store supply water, the second receptacle comprising an inlet port; and a filter system disposed between the first receptacle and the second receptacle, the filter system comprising
an inlet port, a first outlet port, and a second outlet port,a first filter comprising a sediment filter or a combination of a sediment filter and a carbon filter,a second filter comprising a reverse osmosis membrane, anda third filter comprising a carbon filter,wherein the first filter is configured and disposed to receive water from the inlet port of the filter system and to filter and deliver first filtered water to the second filter,wherein the second filter is configured and disposed to receive the first filtered water from the first filter, to deliver a first portion of the first filtered water to the first outlet port of the filter system, the first portion of the first filtered water being waste water that is delivered back to the first receptacle, and to filter and deliver a second portion of the first filtered water, the second portion of the first filtered water being second filtered water,wherein the third filter is disposed between the second filter and the second receptacle and is configured to receive the second filtered water from the second filter and to filter and deliver third filtered water to the second outlet port of the filter system; wherein, when the first and second receptacles are attached to the support base, the outlet port of the first receptacle is disposed in fluid communication with the inlet port of the filter system, the first outlet port of the filter system is disposed in fluid communication with the inlet port of the first receptacle, and the second outlet port of the filter system is disposed in fluid communication with the inlet port of the second receptacle. |
