Re: Single Laundry Tub use:
There used to be a special Stand-Pipe piece that had a Rubber Wedge-Shaped Bottom Seal, with a opened bottom that you place the Seal into the Laundry Tub Drain opening. The top of the Stand-Pipe Part has a couple of Holes towards the top, for use as an "Air-Gap." The Washer {normal drain hose} was clamped to the top of this Stand-Pipe piece, to allow the Rinse Water to drain right directly thru to the Drain Plumbing, and the Plugged part with the other Drain Hose places as such over the edge of the Laundry Tub, allowing the Wash Water to Drain into the Tub, as a holding for the upcoming Washes. I was told by our Family Friends that had a Suds-Saver Kenmore Washer, that they would add around a 1/4 to 1/2 Cup more Detergent, for additional uses of the Wash Water, depending on how dirty the following Load of Laundry was. Normally also the first Wash was Whites and using Hot Water and normally by the time the next Wash was ready for the Suds-Return, the Washer was set to Warm and it would still be warm enough coming back into the Washer from the Laundry Tub. There was also a slight extra amount of Water the Washer added, because of not taking all of the Water from the Laundry Tub, because of Dirt Sediment. The Wash Drain Hoses are as long as the length of the Depth of the Laundry Tub and they have a wedged cut bottom on them, so they could pull the Returned Water back, but somehow also enable them to not allow any of the Sediment to return for the following Loads usage of the Wash Water. If you had the space for a Dual-Laundry Tub, then 1-Drain Hose would be sitting into the first Tub, and the 2nd Drain hose would be sitting into the second Tub. The first Tub {assuming} having the Longer Wash Drain Hose in it, would obviously have a Drain Plug in the Drain Opening, collecting the Wash Water, where the 2nd Tub Drain Opening would be not Plugged, to allow the Rinse Water to just go directly down the Drain, after being Drained into that Laundry Tub side.
If anyone should possible know of any further info, that I might have missed or need further info about, please feel free to add to my discription. I tried to do my best to explain it to be understood enough, as to how I remember with our Neighbor's Suds-Saver Kenmore Washer and their only having the Single Laundry Tub and using the Stand-Pipe as I described.
Peace, Happy Suds-Saving Washing and Fun Wash-In's, Steve
SactoTeddyBear...