An irrigation system for use with a spa includes a water heating circuit, an automatic water fill valve connected to a water source, and an irrigation pump in fluid communication with the spa through a first irrigation line and electrically connected to a power source through a switch arrangement. The irrigation pump is adapted to pump water to at least one irrigation head. The automatic water fill valve then refills the spa from the water source. The system may include a fertilizer injector, a skin-product injector, a water softener, and various sensors running through an irrigation application on a smart phone to control the irrigation system and operation of the spa. The system may be installed