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<p>[QUOTE=&quot;rlm&#039;s cents, post: 239015, member: 7957&quot;]I stand completely behind what I posted.&nbsp; Will it kill everyone it contacts?&nbsp; Not really.&nbsp; The IDLH (immediately dangerous to live and health) limit is 30 ppm for chlorine and 100 ppm for MA.&nbsp; For chlorine, that is about 1/2 ounce in a fair size room.&nbsp; Those are not nice limits!&nbsp; I repeat, IF YOU DO NOT KNOW WHAT YOU ARE DOING - DO NOT USE IT.&nbsp; All of that is discounting the injuries it can cause.&nbsp; With a relatively safe alternative available, why chance it?</p><p><br /></p><p>Just guessing, vinegar will probably work, although not very rapidly.&nbsp; Drain cleaners with phosphoric acid I am reasonably sure will work.&nbsp; There are some practical solutions if you want not to use nik-a-date.</p><p><br /></p><p>FYI:</p><p>I would be willing to bet if OSHA saw you doing as you describe with MA, you would be somewhere between broke and in jail.[/QUOTE]</p><p><br /></p>

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