Another way to cut down on the elbow grease is to use a hand-held plunger to pound the wet washing. A sink plunger will do fine. So make a bathload and leave to soak in detergent solution - after a decent interval, pund the washing 100 times, leave it to think about itself, then repeat, and rinse.
Smaller items in the load can just be hand wring and chucked in either the handbasin or a bucket, filled with clear water. Bigger items like sheets and towels need a helping hand, as above, to wring them out.
Or if you can afford to ry one of these:
http://www.supaprice....table+washing+machine