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Re: Greenhouse problems/PVC

There are two types of white PVC.  There is the cheaper thinner one,  and 
then Schedule 40 which is rated for outdoor use, and is much stronger, and  lasts 
a long time.  We use the schedule 40 on our water garden  installations and 
other applications.  
zone 9
Texas Gulf Coast
In a message dated 11/3/2008 11:40:49 AM Central Standard Time,  
justjess01@gmail.com writes:

I've had  trouble with white PVC here in GA. It lasts for a year or two,
> then  fails, presumably because of the effects of strong sunlight. And the
>  gray PVC will sag when it gets hot, even though it doesn't get brittle  
> the white stuff.

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