Proper hot tub water chemistry involves several interconnected measurements -- pH, total alkalinity, sanitizer level, and calcium hardness -- and getting an accurate read on all of them is the first step before any chemical adjustment. Testing identifies exactly what's out of range rather than guessing at a fix.

  • Tests pH, alkalinity, sanitizer, and calcium hardness
  • Identifies specific imbalances rather than guessing
  • Baseline step before any chemical adjustment