- Follow directions inside the test kit carefully.
- Do not touch the inside or top of the vial or its cap. Do not directly touch any testing reagents. This will falsely contaminate the test sample.
- Choose a testing location away from an inlet that returns water from the filter to the pool.
- Rinse the vial thoroughly with pool water.
- To fill vial, turn upside-down and submerge the vial 12″-18″ below the surface water level. Turn the vial right-side up and allow it to fill. Remove the vial carefully.
- Remove water to the appropriate fill line by gently shaking the vial. If you shake out too much water, start over at Step #3.
- Complete the appropriate test by following directions carefully inside the test kit.
- Read the results by holding a white card behind the vial and position yourself so the sun is behind you.
- Record results in the Pool Log. Recording must be done in pen, not pencil. This is a legal document.
- Rinse the vial thoroughly and dry with a paper towel. Any reagent that remains inside the vial may stain the plastic and give false future readings.NOTE: If the DPD #1 test turns clear almost immediately after inserting the tablet or liquid, it is likely that the Chlorine levels are too high. If this is the case, the DPD #3 test will usually turn bright yellow or ‘murky brown’. A low Chlorine reading will show “no color” at any point in time.
* These tips are generic procedures that may aide you on creating your own. Your pool may require additional steps and/or procedures. All information is copyrighted material of Pool Operation Management, Inc.