Because of the high demand for knowledgeable personnel in the industry, becoming a Certified Pool Operator or CPO is a fast-growing profession. There are over 10 million pools and 7 million Hot Tubs...
Because of the high demand for knowledgeable personnel in the industry, becoming a Certified Pool Operator or CPO is a fast-growing profession. There are over 10 million pools and 7 million Hot Tubs...