It was my understanding that there are three levels of water in TV
The lowest level is human waste water that has been treated to an acceptable level for use in irrigating the golf courses. It’s non-potable.
The next level is mostly runoff water collected via storm drains in the streets and other runoff collection systems. It is redistributed via grey colored pipes that are connected only to the irrigation systems of many (but not all) of the homes in TV. It too is non-potable.
The third level is water acquired mostly from aquifers that is treated with chlorine and various filtrations and delivered to all the homes in TV as potable water via white pipes.
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