BioGuard 4 Way Test Strips show total bromine, free chlorine, pH, and total alkalinity levels in pools and spas. These test strips work quickly and easily with just a single dip test. The results shown will be quick and accurate. Experts recommend testing pool water weekly for optimum sanitizer, pH, and total alkalinity levels.
- Dip entire strip into water and remove immediately.
- Hold Strip level for 15 seconds (do not shake excess water from strip).
- Compare Total Bromine, Free Chlorine, pH, and Total Alkalinity pads (in that order) to color chart on label.