| 摘要 |
A water pack enables water purification in the field. An illustrative water pack can comprise first and second bladders configured to respectively hold treated and untreated water and comprising a filter connector configured to receive and hold a filter between the first and second bladders. A gas bladder connector can be coupled to the first bladder in a configuration to receive and hold a gas bladder internal to the first bladder. A regulator coupled to the gas bladder connector can be configured to attach a pump and regulate pressurization of gas driven by the pump in the gas bladder at a predetermined pressure and volume.
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