AquaChek One-Minute Phosphate Test Kit - 20 Tests

Directions

1. Rinse test vial. Fill to the top line with water from the pool.
2. Empty one powder packet into the vial. Cap vial and shake gently for 1 minute to dissolve the powder.
3. Remove cap from vial. Hold the vial on the supplied color chart near the color blocks. Look down through the vial and compare it to the various squares until you find the best match. You must do this within two minutes of opening to obtain an accurate phosphate level in parts per billion (ppb).