This is a water purification system built on a trailer. It cleans water by first letting gravity separate out heavier particles in a settling tank that has a side drain, and then passing the water through a filter. Optional features include an additive tank or a second settling tank.
Why it matters: Filed before modern membrane filtration became compact and efficient. These advances could significantly improve the performance and reduce the footprint of the filter component, making a mobile unit more practical and effective today.
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