Is there a way to remove bleach from potassium hydroxide more quickly than evaporation.  Evap is very slow and smelly.

trying to evap a drain opener to get the KOH ?
Have a wallys world nearby ? if you do go to the plumbing aisle,bottom shelf you will find two large plastic bottles/one yellow, one white, the smaller yellow one (i think its the yellow one) try reading the label  contains NaOH, and KOH, evap that under heat and a fan or microwave it (better use visionware!!)