Summit Chemical - 2000 gal. Clear-Water Barley Straw Pond Treatment
Product Review (submitted on July 16, 2012):
I bought these last May and they did work to keep the water in the outdoor trough clear. No algae grew and no mosquito larvae grew in the trough for months. After a couple of months the barley got kind old and started to fall apart so I threw them out. I was skeptical but they are worth the money because they work.