Proper filtration is crucial to maintain the correct chemical balance of your spa’s water and can further increase the longevity of your spa equipment. Filtration will occur 6 minutes after the spa is first initialised and again every 12 hours. During filtration your spa will operate on low-speed to circulate the water throughout the tub and the ozone generator will activate. By default the filter cycle is set to run for 2 hours (F2) and should cycle the water through your system completely.