Posted By Clairey O I have worked in swimming pools for what seems like forever. To this end i have many things, but never a maintenance man wearing a life preserver. I guess the questions that need to be answered would be: will he (sorry for the assumption) be alone in the building while carrying out work? what activities will he be undertaking? what are the likely risks adn hazards from the activities? if something does happen to the poor chap, how would he raise the alarm? (some pools have a necklace type device with a sensor that sounds a very loud alarm when immersed in water, that staff wear) how would a life preserver help if the man was unconscious and face down in the water? You say the man is fit and can swim, but what if he gets an assitant or is replaced by someone who can not swim? My experience leads to the pools that i work within to have a member of staff doing routine cleaning jobs, while the maintenance man in working in the pool hall (there are always things to be cleaned in swimming pools, don't listen to the staff when they tell you they cleaned it this morning!!) Hope this was helpful.