4 It is difficult to clean and disinfect a hot tub
Although a hot tub can be cleaned of germs, the biggest problem is the heat of a hot tub that neutralizes the disinfecting power of chemicals which then need to be replaced frequently. Health authorities state that a hot tub should be disinfected every hour when in heavy use. Chlorine content should be 2-4ppm, bromine 4-6ppm and pH level 7.2-7.8. Slimy bacteria should also be scrubbed off the surface of hot tubs.
5 Chlorine gets depleted easily in a hot tub
Chlorine in a hot tub gets reduced by items like sunscreen, sweat and skin care products, urine and skin cells also react with chlorine forming chloramines a known skin and eye irritant. The ideal practice is to shower before entering a hot tub.