I am resurrecting my hot tub after a couple of years when I didn't have a cover. My tub is in a porch with rows of windows on two walls. Recommendation is to fill, use leisure time jet clean, drain and fill again. I have never used jet clean when changing the water. I would like to avoid using this much of such a precious resource we have in water. Can I skip the jet clean? My Jets are relatively new and clean as a whistle.