I thought they already had a (non-spin) wash machine, using a tough bag that inflates /deflates rapidly for wash/rinse 'cylces' and completes with hard-inflate

I thought they already had a (non-spin) wash machine, using a tough bag that inflates /deflates rapidly for wash/rinse 'cylces' and completes with hard-inflate to expel wash fluid. Read of it ?10yrs ago in popsci.