Sharko Pool Services & Maintenance Inc in Chula Vista provides residential pool cleaning and equipment upkeep from the 91910 zone, operating as a California corporation since its July 2000 incorporation under document number 2052702. Routine service covers skimming, chemical balancing, filter cleaning, and pump inspection, with equipment diagnostics that flag mechanical issues before they require the structural pool repairs handled by Hot Springs Pools, Service Inc. for heater or plumbing failures. Weekly maintenance programs test and adjust chlorine, pH, alkalinity, and calcium hardness levels to keep water chemistry within the parameters set by San Diego County's Department of Environmental Health for residential swimming pools. Pool equipment connects to household plumbing through backwash and fill lines, and Sharko's technicians coordinate line-pressure issues with specialists at Solid Plumbing & Drains Inc when system faults extend beyond the pool pad. The D-35 pool and spa maintenance classification under California's Contractors State License Board governs the scope of motor, pump, filter, and gas heater work that the company's technicians perform on residential pool systems across the service area.