The work of making water drinkable is something quite simple if we have the necessary machines.
Fuente
Here through photos I will show you the process that is done where I work.
1- The water passes through this machine and is made potable
2- The bottles are received and washed with filtered water and an odorless soap.
3- It is necessary to rinse the bottle to remove the soap residue and fill it with purified water.