how to dispose of half used chlorine tabs

engrav

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Jul 4, 2012
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Whidbey Island, WA
Hi
Was out of liquid chlorine for a time and covered with tabs in the Rainbow.
Now have liquid supply so removed the partially dissolved tabs.

How do I dispose of partially used tabs? I hate to just use 'em up as they are so so acidic.
Let 'em dry out and put in a plastic bag for use later?
Take to hazardous waste?

thanks
 
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