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FreshWater IQ Explained: How Limelight's Smart Water Monitoring System Keeps Your Spa Balanced Automatically If your Limelight spa came equipped with FreshWater IQ, you have access to something most hot tub owners never get: a system that tests your water every hour, tells you exactly what it needs, and in many cases fixes the imbalance for you before you even notice a problem. That's a meaningful step beyond a standard salt system, and understanding what each piece of FreshWater IQ actually doe … read more