Most if not all public supplied sytems use chlorine or chloramine. I have too many tanks that get huge water changes, some more than once a week. I'd trip over the buckets and never have enough.
The cost of a water conditioner is minimal and I can just proceed from one tank to the next with the python. Of course, I have two different water sources at my house. Our own private well that is not treated with anything, and a community system, from wells, that is treated.
Ah ok. I can see you'd be changing water all day using buckets

By the way, what's a python?? I don't think you mean the big snake
