What if my QuickPass has green or black spots?
It is not uncommon to see mold grow on a QuickPass or other paddle test because these tests combine stagnant, room-temperature water and a nutrient-rich pad.
However, the good news is mold development does not have any impact on the testing results and is not a response to contaminated waterlines. If there are no red dots on the paddle, even if there is mold growth, your QuickPass test result would be considered passing.
For best practices, dental professionals should read test results within a 48–72-hour period after collecting water samples. If QuickPass is left for longer than 72 hours, we recommend that you retest as the results may be inaccurate. Also note that mold growth is much more likely after 72 hours.
For best practices, check out our official QuickPass Instruction for Use.