BARLEY STRAW EXTRACT - PINT SUMMIT/CLEAR-WATER: BARLEY STRAW EXTRACT - PINT $13.75 SKU: SUM136 QTY: Click here to save 5% off of your order! CLEAR-WATER BARLEY STRAW EXTRACT A safe & natural alternative to treat cloudy water in decorative garden and fish ponds. Tip n' measure bottle treats 7000-9000 gallons. Especially designed for economy and ease of use. Easy tip n' measure bottle. Best results are achieved when Extract is used in a preventive manner. Treat every week for the first month, and then proceed to a two week maintenance schedule. Will not harm aquatic life and pond plants.