Tap water's quality or pipeline of question in nature?

Please focus tap water on! Don't transform white-iron pipeline get smell of the PVD compound-pipeline for to obscure fur of sleazy tap water?? Don't the PVD compound-pipeline for afresh to pollute or permeate the tap water??! Why doing??? The PVD pipeline be fit for imbibe top water of  have country's certificate?? Eligible hygiene? This is coercion of blind ignorance?! Resist use tainted tap water with stop to water? This is come up against to me of unique wrong choose? This is a "democratize and improvement or harmony's serving??

Hope come back original tap water pipeline of white iron from refine tap water!

We need tap water of pure and mineral iron-ion ! Prevent the leukemia occur from lack ferrous ??! Conservation our green-live environment!

Please?!