1. Take a sample of growing weeds or algae from the water
2. Pat them dry with a paper towel
3. Discard the paper towel
4. Place the sample (s) into a zip-lock bag
5. Mail to:

Aquacide Company

1627 9^th Street

White Bear Lake MN 55110

Or you can follow the same steps and email it to weeds@killlakeweeds.com