I am the only person using my hot tub, is it still necessary to keep the chlorine at the right level?
The water was changed in late November, is crystal clear and the chemicals are still right. I only used the tub once since the water change. I have been unable to use it because of health problems. When I can use it again, ( soon I hope ), do I have to do a water change again even though I only used it once?
Thank you all.