CPO Two-day Class 
 
A 2-day course in a classroom setting  is 14-16 hours long.  The first day’s instruction is about water chemistry, pool calculations, pumps, filters and risk and liability management.  The second day will be a review of pool calculations, and going over your state and local code followed by an open book exam.  The exam may take 3 hours and you will need to score a 75 or better to earn you national certification.  Your certification is valid for five years.