Dear Fernando,  Greetings ...

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Dear Fernando, 

Greetings and I hope you are doing well, 

We are installing water purification plants (RO) for make underground water usable for drinking purposes, there seems no other way to make underground Contaminated water drinkable.

Please visit the link bellow: https://www.youtube.com/playlist?list=PLJicXPD89UTfMhee6yJi1BJ5M3WdLCUQ1

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