Investigate yellow-brown color, earthy or musty odor, and tannin-related staining.
Tannins are naturally occurring organic compounds that can affect the appearance, taste, and odor of water. This targeted laboratory test helps determine whether tannins are present before treatment is selected.
Best suited for
Yellowish or tea-colored water
Earthy, musty, or tangy characteristics
Staining on fixtures or laundry
Treatment planning when tannins are suspected
How it works
National Testing Laboratories ships the required sample container.
Collect the sample exactly as directed.
Return the kit according to the enclosed instructions; return shipping is not included.
Receive a laboratory report after analysis.
Informational testing; color and odor can have multiple causes, so results should be considered with other water-quality data.
Representative collection materials; exact container appearance may vary by laboratory lot and shipping requirements.