To test a solution of Control III with a test strip, follow these steps:
1. Tear off one 2" Test Strip. Always use a fresh strip, never re-use the test strip.
2. Dip the strip into the Con troll III solution for 2-3 seconds.
3. Remove the test strip form the solution. Wait 30 seconds, then compare with the color chart.
4. If the color indicates a level of 800 PPM or below or below, it is time to change the solution. A reading of 1,000 PPM or higher ( dark green ) means the solution is still good.
5. Throw away the used strip.
