The original Bendix tumble washer had a teeny tiny, itsy bitsy cylinder. You probably have mixing bowls larger than the cylinder in the Bendix. Then, in a washer that depends on fabrics falling into water, you had, not only a tiny drum with no room for things to drop, you were washing in soap which has to make suds to suspend the dirt. Suds cushion the landing when clothes are supposed to drop. Then you had suds and some soap curd, not crud, but curd. That is the combination of soap, soil and the by products of using a precipitating water softener like borax or various other products that sequester the minerals in globules of gunk. In a wringer washer, the clothes are lifted out of the wash water so what floats on top of it stays where it is. In the teeny tiny drum of the Bendix, this gunk could not go anywhere without great difficulty. It was all mixed up with the clothes and when the water drained, it was hard to get this stuff to go through the holes in the cylinder. They tried to assist this by giving the one minute flush rinse with warm water, but in the old Bendix machines and the first WH Space Mates, the water spray came into the outer tub and sprayed down onto the rotating culinder, not the best way to flush gunk out of the cylinder and not like more modern machines where the flush rinse sprayed into the tumbling clothes. Any suds curd left when the deep rinses started just dispersed themselves back into the load, redepositing soil.
Things got better when low sudsing detergents came along by the mid 50s, but by then you had 15 years or so of a marginal method of doing laundry impressed on people's minds. Westinghouse greatly improved their machines in 59 or 60 when they enlarged the tub and removed the tilt. I honestly do not know when Philco enlarged the cylinder in the Bendix design tumbler washing machine. If the washers had the same size cylinder as the 27" Duomatics, it was a good size and a great improvement.
