How to set up a water bottling plant? If you are new or interest in the bottled water business, I believe below article will help you a lot. Find Your Own Water Source First of all, we should choose a good water source. Two of very important indicators in raw water are EC(electrical conductivity) and TDS (total dissolved solids). If the EC and TDS is too high, it is recommended to choose double stage water treatment equipment. The standard of China's national pure water is that the conductivity is less than 10us/cm and total dissolved solids is less than 50mg/L. The raw water source can be municipal tap water, spring water, or groundwater, there is no source of pollution around the water source. Water source: tap water, mountain springs - from specific protected mountain areas; mineral water - groundwater (borehole water).