Salt build up can cause nutrient lock out and negatively affecting plant growth. House & Garden Drip Clean helps remove salt particles and dirt from plant root structures, hydroponics system plumbing, and growing mediums. Maintain optimum hydroponics cleanliness by administering at every feeding. After all, a clean hydro system grows a strong, healthy garden! Drip Clean is compatible with all grow media and nutrient solutions. Safe to use with any plant and can be used with tap or filtered water. An added benefit is that Drip Clean's proprietary blend helps to reduce flush times at the end of every harvest! Application rate: use only 0.4 mL per gallon of nutrient solution at every feeding. One liter of Drip Clean will treat 2,500 gallons! Derived from Phosphoric Acid and Potassium oxide.