I think longer washing times in wringer washers resulted from one person, especially when it was just one person, having to do everything. I would submit that loads after the first one washed longer when you consider how much time it took to process the first load through the rinse tubs then go outside to hang the load on the line. It was easily 15 minutes even when two people were doing the wash, as I remember at my grandmothers' houses and, as the water cooled, maybe more time was beneficial, but it was largely determined by when the previous load was on the line. I was allowed to play in the water, I mean squoosh the water through the things wrung into the rinse tubs.