I grew up with the old school top loading washing machine with the agitator where the water fills up and covers the whole wash load. Then you watch it spin around and get mesmerized by the clothes just swish and swaying in that deep water.
How much water? umm probably around 40 or more gallons of water. And you always feel that more water means more cleaner clothes. Well since our old school agitator washing machine broke and recently purchased the newer High Efficiency Top Loader washing machine I have been skeptical if it really cleans as our old agitator type washing machine.
I have tried peeking in the new washing machine a few times and I keep on wondering if it does clean with less water. Well now I guess there is some study made for that topic of washing machine water level and maybe I can put my mind at ease.