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Re: [APD] Copper



Why not use CPVC? 

> -----Original Message-----
> From: aquatic-plants-bounces at actwin_com 
> [mailto:aquatic-plants-bounces at actwin_com] On Behalf Of Jerry Baker
> Sent: Wednesday, September 07, 2005 3:31 PM
> To: aquatic plants digest
> Subject: Re: [APD] Copper
> 
> Liz Wilhite wrote:
> >  PEX has been used in Europe for 40 years. I'll let the 
> European list 
> > members weigh in on their genitalia or those of their sons 
> if they choose.
> > Copper toxicity is a well documented problem and I never was much 
> > concerned about it, either.
> 
> Copper, although toxic in large doses, is a naturally 
> occurring element that our biological processes have been 
> exposed to from day one. In other words, we have evolved to 
> cope with exposure to copper. Not only do we cope with it, 
> but we require it in small quantities.
> 
> Polyethylene, on the other hand, is a polymer artificially 
> made from petroleum. It leaches into liquids that are stored 
> in it. PEX, in particular, leaches MTBE and benzene. Perhaps 
> it is perfectly safe to drink, but perhaps not. I think 
> metals are the prudent choice, but that's just a personal choice.
> 
> -- 
> Jerry Baker
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> 
> 

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