As far as I know
the return is automatic, with no need to manually move the timer and operated during the fill portion of the cycle. It takes 4 minutes to return the suds to match the usual fresh water 4 minute fill time; hence, the weak small slow pump. The return is selected on the Wash Temp Control: "Hot- Warm- Cold- Suds Water Saver" were the readings on Aunt Ellen's Mid -60's Multimatic.
Rick's new beauty looks like it works the same way, although his has a separate control. Can't wait to find out.
Ditto, Kelly, no drama! No agitation, cool noises, etc., nothing like the excitement of a WP/KM.
I'll have pix soon of a few solid tubs.