Cleaning tubs???

[Wolves-N-Dogs]

Actually, it doesn't. It may get the dirt off, but you're not cleaning anything. You need an actual disinfectant to do the job properly.

Alcohols
Alcohols, usually ethanol or isopropanol, are wiped over skin and allowed to evaporate for quick disinfection. They have wide microbiocidal activity, are non corrosive, but can be a fire hazard. They also have limited residual activity due to evaporation, which results in brief contact times, and have a limited activity in the presence of organic material. Alcohols are more effective combined with purified water—70% isopropyl alcohol or 62% ethyl alcohol is more effective than 95% alcohol. [The previous peculiar claim should be removed unless it can be explained/sourced.] Alcohol "Ethanol alcohol at 70% is more effective at killing bacteria than at 90 to 100% because the alcohol gets inside the cell better. Isopropyl alcohol is even more effective at killing bacteria because it is less volatile. While alcohol is a good disinfectant for inactivating many bacteria, it will not inactivate bacterial spores that are resistant. At acidic pH levels, many bacteria are inactivated by vinegar by adding hot water to Alcohol this will kill all bacteria.

In short alcohol works just fine.