Aqua-pHix™ is a proprietary blend of chelated, buffered acid designed to help manage hard water and highly alkaline soil. Available in a hydro & spray formula, it is proven to be more effective than any sprayable acidifier on the market and the most cost-effective treatment for high-pH soils available. Unlike sulfuric acid, Aqua-pHix is safe to the touch and non-corrosive to spray and irrigation equipment.