Calling All Chem Geeks (incl. THE Chem Geek) re: storing pool chems

[chem geek]

Though I am not certain, I doubt very much that non-chlorine shock (MPS) has any significant volatility. It's not like Trichlor pucks/tabs that can offgas chlorine (which you can tell by the smell when you open up a large container of pucks). Also, the container for the non-chlorine shock shouldn't be vented so if well sealed it shouldn't be a problem.

[CarlD]

But remember when it's below 0 F, the containers the MA is stored in get very, very brittle. Even hardened steel gets brittle and can shatter when it's that cold. I had a padlock on my gate I couldn't open when it was well below zero, and I whacked it with a pry bar and the hardened shank just snapped like an icicle! So imagine how fragile poly containers are!