Bales should be placed on the water surface, best if it is close to the waterfall or filter outlet. Don’t let the bales to sink to the bottom of the pond. If you do have a bale sink, let dry for 24 hours and then put it back in the water. Each bale is effective for about 6 months

Barley Straw Bales
The original and best selling barley straw pond treatment from Summit. Each bale treats up to 3000-5000 gallons. Keep your pond water clean and clear year-round. Clear-Water Barley Straw Clarifiers are easy to use, safe and attractive. Clear your pond, fountain and fish tank naturally. Acts as a natural filter to keep your pond clean and clear. Won't harm fish or plants. Works up to 6 months.