Answer: CHLORINE
CHLORINE is a crossword puzzle answer that we have spotted 11 times.
Referring Clues:
- It's added to the pool
 - Pool room emanation
 - Green gas
 - Table salt component
 - Powerful oxidant
 - Bleach ingredient
 - Swimming pool additive
 - Pool necessity
 - Pool purifier
 - Pool chemical
 - Algae-killing chemical
 
Last Seen In:
- USA Today - November 01, 2016
 - King Syndicate - Eugene Sheffer - November 29, 2011
 - King Syndicate - Premier Sunday - November 27, 2011
 - Netword - September 24, 2011
 - Washington Post - July 04, 2010
 - New York Times - June 23, 2007
 - Netword - April 21, 2007
 - LA Times - March 11, 2006
 
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