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Old 12/17/2005, 06:37 AM
lucubrator lucubrator is offline
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Join Date: Sep 2004
Location: San Diego, Ca
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You don't need CO2 at all for a kalk (limewater) reactor. LW reactors are fed with DI water, and have a pH of ~11 when a saturated solution is produced. In a calcium reactor, the CO2 is dissolves into salt water to a pH of 6.5-6 depending on various factors, and the acidity of the water dissolves solide calcium carbonate.