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From: larry@kitty.UUCP (Larry Lippman)
Newsgroups: net.med
Subject: Re: Re: Distilled water as drinking water
Message-ID: <190@kitty.UUCP>
Date: Wed, 31-Jul-85 11:11:48 EDT
Article-I.D.: kitty.190
Posted: Wed Jul 31 11:11:48 1985
Date-Received: Fri, 2-Aug-85 08:15:58 EDT
References: <1806@amdahl.UUCP> <1@drusd.UUCP> <717@cadovax.UUCP>
Organization: Recognition Research Corp., Clarence, NY
Lines: 27

> I've heard that regardless of the type of water you get (distilled,
> spring, etc.), if it comes in a polyvinyl-chloride bottle (like most
> major water suppliers provide) instead of a glass bottle (like they used
> to have until someone decided they were too heavy), the quality of the
> water is compromised.  Something about PVC molecules being freed and
> mixing in the water.

	Pure polyvinyl chloride (PVC) is tasteless, odorless, and quite
inert.  Pure PVC alone is not used to manufacture containers; it is mixed
plasticizers (to make the container flexible), UV stabilizers (to prevent
deterioration from sunlight and ozone), and colorants.  The cause of any
taste or smell to water in a PVC container is generally impurities from the
above additives leaching into solution.
	A good quality PVC will have virtually no taste or odor problem.
However, good quality PVC costs $$$, and distilled water for consumer use
is generally packaged in bottom-of-the-barrel quality PVC containers.

	Larry Lippman
	Recognition Research Corp.
	Clarence, New York
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