Previous in thread

The link to the .doc seems to be broken or hanging.

In my experience with bottles from New Zealand, which have a recycle triangle with a 1 in it, and the letters PETE nearby, they only need washing once they've started tasting wrong because they're growing mould, and by then they're battered enough to replace anyway.

They seems to start growing mould if:
- I fill them with tap-water, rather than carbon filtered water or
- they get lots of light

I'm guessing that the light and chlorine are both energy sources, to start the mould growing.

I'm guessing about things that would degrade plastic, that they include:
- uv light
- oxygen
- heat
- detergent

I'm guessing that the bottles are stable under the first two, because they have to have adequate shelf-life in flourescent lit fridges, so I'll probably survive my present bad housekeeping.

Would anyone care to provide:
- details of the expected symptoms from this hazzard
- an analysis based on fewer guesses and more knowledge
?

Regards,
J. Cone
(Does computers not chemistry for a job)