There are not too many germs which can survive a good dose of chlorine.
Hydrogen peroxide is better, and safer. We have 50% hydrogen peroxide available, and we use it instead of chlorine in our swimming pool. About half a gallon a day or two in our 25,000 gallon pool. Works great. And with a little copper sulfate added to the pool the water stays clear and algae free.
Works for sanitizing hot tubs too.
We also use it, diluted to wash fresh vegetables when we bring them home from the store or in from the garden.
Many, many sanitizing uses for hydrogen peroxide when you have the good, strong stuff.