I think that to disinfect them, firstly we don't use any glass/steel glasses which we have drank from with our mouth into the pot again. There is a steel glass with steel handle that is bought mostly with pot whose only purpose is to take water from the pot and handle it into another containers without infecting.

Even then, every night when its time to usually refill it. We remove the remaining water and usually wash it with hands/water itself rather than brush. In my understanding if you actually brush pots, you will lose layers and you might actually generate more sediments (just a hunch)

The whole process doesn't take too much time maybe 5 minutes and then you just fill it up with any source of water you like and it costs less than a dollar or two and nearly everybody has it.