Not really recommended. Tap water will also wreck misting/fogger systems. Distilled or Reverse osmosis water is best. Both can be bought for pretty cheap, by the gallon. Or you could just get an RO system.
Also, try to keep your information all in one or two threads. You have made lots of threads about small questions. Nothing wrong with questions but it is hard to follow what you have and haven't been told/advised to do when you have so many threads.