You might think you work faster, but in fact you slow down in the cold...
Water moves more slowly the colder it gets, to the point where it frezzes and doesn't move at all
Hoses stiffen and are less likely to move smoothly
Rubber diafraghms (sp?) in pumps stiffen and are not so flexible, move less water
YOU stiffen, your muscles tighten and you do not operate like the well-oiled mahine you are (!)
The cold affects your thinking and slows down your judgement and ability to respond to situations and you have more accidents
and on and on.
You think you are working quickly becasue in reality you wish you werent out there at all and cant wait for it to be over.
Hot systems have the edge over cold, and dressing properly will help, but big heavy clothes will weigh you down like lead.
Cuts hands are painful when they thaw.