When using 14% hypo its worth contacting nasa beforehand to borrow one of their astronaut suits, and if you are going to be spraying it in the air its also worth having plenty of plastic sheeting and loads of masking tape at hand just in case you don't like hearing from solicitors. 
Indeed...That is why most only use 1% yehaa on render now
Indeed Smurf, good to see more and more guys are realizing just how hazardous sodium hypochlorite really is and the detrimental damage that it can cause to so many different types of surfaces, especially when its being used at high strength.