OK, we have a new, non-leaking tub with separate taps. We have a separately controlled water flow to the washing machine. We have a new laundry drain in a new location. I’ll be able to make more space in the basement once the new patch of floor cement sets. Meanwhile, I can do laundry again without bailing the tubs.
I had a working area clear and helped to dispose of the old, demolished cement tubs via the cellar window.