If you want the pool to be sanitary, you need at least some small amount of chlorine. However, to prevent algae growth, the chlorine level needs to be higher unless you use a supplemental algaecide or phoshpate remover. So I would suggest that if you want to use the minimum amount of chlorine, then, at extra cost, you use either a weekly PolyQuat 60 algaecide or a phosphate remover and you could also use 50 ppm Borates as an additional algistat as well. These will prevent algae growth and let you have a low chlorine level of, say, 1 ppm Free Chlorine (FC) in the pool with a higher Cyanuric Acid (CYA) level of 50-80 ppm. This is a very low chlorine level that you shouldn't even smell or notice except that if you sweat, then the chlorine will react with it on the skin. It's not chlorine you would be showering away, but monochloramine. Nevertheless, at 1 ppm FC with a high CYA level the smell would be minimized and the effects of chlorine on skin, hair and swimsuits would also be minimal.