you use it. as previously stated, the perfect finish is achieved through good timing – so use your time wisely by cleaning buckets and instruments while waiting for the layers plaster to dry.
keep a watch out for any old bits of dried plaster. if they sneak in and get mixed with any fresh plaster, they will cause pulls and drags – less than ideal if you seek a perfect finish!
is the water you use clean enough to drink? is your bucket clean enough to drink out of? are your instruments clean enough to eat from? if you answer no to any of the previous, know that your cleaning needs to 