There is a way to get around the lack of a storage tub
and my Grandmother Loudenback did it. She used a large new-clean 20 gallon galvanized trash can as the holding tub. Her 1956 Kenmore suds-saver was in the kitchen, and no room for a tub. For a few years, she did not have city water, and had to watch her water usage very carefully.
She had the can on a short sturdy platform.
There was a standpipe for the rinse water hose. When she was done for the day, or the rare, rare times when she needed to wash an emergency load, she would angle the long wash drain hose into her kitchen sink, and set a cast iron object on the hose to keep it in place.
Suds-Savers were not gross to people who had used wringer washers, and used the same water for several wash loads, always adding a little more detergent to each wash load. Theory was that by adding a little more (less than a full dose) of fresh detergent, you'd maintain soil supsension and get good enough washing. You'd start with the "cleanest" loads, and work up, during the course of the wash day.
There were other ways of dealing with the tub situation. Some had single polystone sinks and an "overflow tube" in which you'd put the rinse drain hose, and the rinse water would go down, and the wash water was retained.
Our first automatic, the 1964 Whirlpool Imperial, was a suds-saver, but by the time we replaced it in 1978, with a Maytag A208, Ma's flirtation with Suds-Savers had run its course. We did have the twin cement sinks in the basement (Oh, I miss them!) While we still had the Whirlpool, I would do a few suds-saver loads once in a while (maybe twice a year) just for the fun of it.
Lawrence/Maytagbear