Most houses built in the south in the post WWII building boom did not have basements with set tubs and many older homes in the south were not built with basements. Automatic washers installed in kitchens or small utility rooms usually did not have space for a laundry tub in smaller tract houses. Basements in our neighborhood were an option and availability was dictated by the grade of the lot. Just because a house had a basement did not mean that the sewer connection allowed a drain outlet to the street that was low enough to allow tubs. Our basement had a standpipe that was up because the pipe went out about 3 or 4 feet on the wall. We lived miles from Stone Mountain but granite underlaid the ground in the counties around it and there were even granite quarries in towns with names like Lithonia which means city of stone. The granite in the ground prevented the burying of the sewer pipes any deeper without blasting. So in that area and at that time, sudsaver washers were not a big seller.
Sudssavers or SudsMisers had to be optional because so many installations did not allow for dealing with the wash water coming out of a second hose. My first paper route, or at least the oldest part of the route, was built before there was natural gas service and the homes still had the old separate meter for the electric water heater on the wall of the house beside the main power meter, but the laundry hookups were in the kitchens with no tub for a sudssaver. I do not know if there could have been connections in the houses that had basements. A lot of older homes in the area that did nave gas service had fearsome contraptions called floor furnaces that vented up through the walls and out through the roof, but were always fenced when in operation to prevent burned feet if anyone walked across the hot 2 foot by 3 foot grill in the floor, usually in a high traffic area like a hallway. They were good for drying clothes in the winter.