Good point gmat, I knew tygon was tough stuff so I wasn't really worried about anything catastrophic but I never thought much about the copper - I generally view those as the 'stronger' parts of my system but that might be a mistake
I think when I get home (if I make it through the blizzard) I'll take a bucket, fill it with bleach, throw some copper and lexan in there and see what happens after a week

I'll report back with any results!
Just for clarification too - I added about a cup of bleach to approx 3 gallons of water, and I had about a tablespoon of Jetdry in at the same time. Call me the mad scientist if you will - I'm probably lucky it didn't blow up!
The white stuff seemed unaffected by the bleach the first day but when it sat overnight you could see it was dissolving it very quickly.
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edited fer stupd typoes