My parents told me stories of people in the Middle East doing their laundry in rivers by bashing their soaped clothes against flat rocks.
Perhaps they still do this dhobi work, since apparently it’s a cheap and very effective way to get even grimy shirts immaculate.
Today’s invention is related to dhobi laundry and was inspired by this punchbag used as a dirty clothes basket.
Imagine a heavy punchbag into which you put your laundry items and a squirt of detergent.
A hose is used to pour warm water in at the top and effluent runs into a drain or water butt on the ground below.
The user would punch the loaded bag, which would be a significant training exercise.
This would force water through the fabric, cleaning it effectively and with less electricity being used.