This is cheapest option for water production, it assumes source of water is city water supply or clean natural mineral water, also also assumes you will start with pre-purchesed preforms for making the bottles, filling and capping is semi-automatic

The required machinery

1. Reverse osmosis water purification system 
2. Bottle blowing machine (semi-automatic)
3. Capping filling machine
4. labelling and inkjet machine (can be done manual)
5. carton wrapping machine (optional) 

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