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					Originally Posted by Treebeard  Since the weather turned for hell here a few days ago, and my windows are closed most of the time my pH has been hanging 7.7-7.9.    I realize that this likely a seasonal issue and I never was even aware of it until now, but thanks to my Apex, now I know.  I am wondering if I should be concerned about it and doing something to raise it? | 
	
 This is where my pH is at these days too (as displayed on my controller).  Definitely a seasonal thing.  I personally don't pay any attention to my pH and have never done anything to correct it.  I don't think it needs correcting.  I like Brad's suggestion about unplugging the probe.  Unless you're using one in a calcium reactor they are a bit of a waste of money really.