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Considering the unreliability of piping systems in the country, the water distributed by major concessionaires and local water districts may not be fit for drinking as it can be adulterated by old, dilapidated or illicit pipe connections. Water from refilling stations dotting almost everywhere, on the other hand, comes mostly in non-BPA containers, which are also not guaranteed to be properly cleaned 100% of the time, and may be exposed to pollutants during preparation, storage or delivery.