Just push it up and down for strong agitation of the water in the bucket. To me this washing device is very easy to use. Portable simple design. Fill a 5 gallon bucket with water, add laundry detergent, add dirty clothes, then use this washing wand.
I found this on Amazon (affiliate link): amzn.to/3Q2G9xI
Water is pushed and sucked through the clothes to provide a thorough cleaning action. Cleans clothes in no time. You bring a bucket of water and detergent, and this portable washer machine will take care of the rest. You can get a quick small load of laundry done in a fraction of the time it takes a regular washing machine. In my mind I call it a washing stick. The way it's design it makes washing items effortless. With no moving parts, this thing will last a long time.