Ramona, California, resident Alexandre Grinius serves as a pool repair technician and trainer at Estates Pool Service. The company provides a variety of services, including testing and adjusting pool chemicals per Occupational Safety and Health Administration (OSHA) standards, vacuuming, skimming, pump basket cleaning, and water surface skimming. As a repair technician, he diagnoses and attends to clients’ pool equipment repair needs and establishes maintenance requirements through inspections