UV Water Sterilizer HELP

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eott

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I recently installed a UV Sterilizer light using PVC pipe at the inlet/outlets on the metal housing. As soon as I turned it on I knew I was an idiot as the UV light was making the pipe glow. I figured I'd replace it in a few months as the UV would break down the plastic PVC. After only a few weeks our water began to have a 'burnt' smell to it so I replaced the inlet/outlets with a 12" section of stainless steel flex pipe. Sure enough the PVC I removed was brown on the inside and looked like the UV light burnt it. Anyways, the "fix" didn't seem to work as I'm still smelling the same burnt smell in the water and am not sure how to proceed now. Is it possible the UV light is being reflected in the stainless pipe and continuing to burn the PVC? I'm attaching 3 pics - 1 of the original setup with PVC Connections, 1 of the cut PVC pipe, and 1 of the new setup with stainless steel connectors. Whats the best to connect to a UV light? I've read conflicting articles - some say copper but others say copper is bad..Thought about using a 6ft section of washing machine connectors (figured light couldnt be reflected along that length of pipe) but have read they have a PVC core.

Here are the pictures:
http://imgur.com/a/6Yw3P

http://imgur.com/a/0lBVD
 
it is illegal to use pvc piping for water inside a building

I would use cpvc instead, the section going thru the light i would use copper

I appreciate the reply! I know I should've used cpvc, but had pvc lying around and only using it for transporting water prior to the water heater so I didnt think it would matter at this point. Just got the house built so no plans to sell in the near future either.
 
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