For some Woodbury residents this may not be a problem, but for others the problem just will not go away. Those blue and green stains could be a sign that your water softener is regenerating too often. Over-regenerating has a tendency to make water become corrosive toward the copper pipes and faucet fixtures in your home. The pink stains may be caused by the kind of salt you're using in your softener. Don't worry though; these problems are easier to correct than you think!