A third time was not required most of the time as us kids used to put our full weight on the mangle rolling handle to get it to turn, often with your feet off the ground, bouncing like mad to get it to turn.
When I think back it was easy to see how us kids, or at least 90% of us, were never fat. We were always on the go doing a host of things for the neighbours as well as playing. Now and again you got your orders to go to one of the neighbours to help put the bedding through the mangle. First job was to fold it up properly, making sure it never touched the ground or God help you. Then the mangle had two rollers, to which the end of the sheet was placed in then turning the handle would pull the sheet through as well as squeezing out the excess water.
Next, on top of the two rollers were two things like taps which when turned made the gap between the rollers get narrower. The sheet was then fed through again and some more water was squeezed out. A third time was not required most of the time as us kids used to put our full weight on the mangle rolling handle to get it to turn, often with your feet off the ground, bouncing like mad to get it to turn.
When all was done, sheets squeezed, hung out and poss tub with pounder put away, then checking the wash house fire was out, you were rewarded with a couple of scones or a cake if she had baked on Sunday. If no baking was done you got a thank you and sent on your way. For some reason Monday seemed to be the most popular for washing day. For the young ones the mangle was like the spin dryer of its day.