As a pool technician, your duties will include driving to the customers' location, testing the pH of the swimming pool water, adding chlorine, acid, and other chemicals to correct the pH as well as repairing light fittings, leaks, cracks, and faulty equipment. To ensure success as a pool service technician, you should have excellent knowledge of swimming pool equipment and maintenance, be able to work with hazardous chemicals, and interact with clients in a friendly and professional manner.