What's your point. Of course PVC is cheaper .... so if we ignore the negatives (and there is more then the leaching issue); we end up with a much less expensive solution esp in the short term.
Why are you changing the topic - first you swore up and down they wouldn't use pvc then you turn around and say of course they use it because it is cheaper. But both of these are off topic which is water quality. It isn't a question of whether it is cheaper or more expensive it is the impact on water quality which back in fold swore was top notch - the very best.
Mind you a lot of cities use pvc and even with the warning letter that was sent continue to use pvc and a lot of folks with aquariums use pvc - it is readily available and relatively cheap. That's a trade off we make. We could use polyp which as far as i know doesn't leach and hospitals (or at least some) do use polyp to prevent leaching but of course it can be quite expensive depending on the grade.
And if you look enough there are even cities with old lead pipes. There are lots of things in water which make it less pure then that found in the amazon. Some of it might make sense and other stuff it is 'too inconvenient' or 'too expensive' to filter out. Sometime it is just a matter of not wanting people to know.... Anyway .... this all started when someone who name is too difficult to type out insisted that their city did not add an additive to raise ph because they had the best water without even bother to check with the city.
My quick check suggest they do not bother since the tap water source is from the yellowstone river which is already rather hard due to limestone. And in fact billings has AWFUL water if you keep soft water fishes ranging from 150 tds to 400 tds depending on neighborhood and time of year. Don't yell at me this is what THEY post:
For comparison upstate newyork has water in the 60tds range; and areas of west boulder county (colorado) in the 40tds. I could check other locations but what is the point. My city water is 120-140 tds - it is fine water though like all cities has some rather nasty impurities at low level that are considered 'safe'.
I personally would puke if i lived somewhere with 400tds water and yes i've have experience very hard water before. My sister lived in an area of milwakuee with very hard (don't know exact value) well water and everytime i took a shower i felt like i need a shower to wash the lime off.
www.billingsmtpublicworks.gov
