Lowers High pH & Alkalinity pH Reducer for pool reduces high pH and alkalinity to maintain balanced swimming pool water. This Sodium bisulfate formula prevents cloudy water, scaling, and damage to pool equipment.<br> Fast-Dissolving Dry Acid Our pro-grade dry acid for pool works quickly to adjust pH levels. Simply add directly to the deep end of the pool and let it dissolveno pre-mixing required. Swim-ready in just 15 minutes!<br> Prevents Scaling & Cloudy Water High pH can cause calcium buildup, leading to rough surfaces and cloudy pool water. sodium bisulfate for pool effectively prevents scaling, protecting pool surfaces, plumbing, and equipment.<br> Safe for All Pool Types Works with chlorine, saltwater, and bromine pools. Our alkalinity decreaser for pool helps optimize sanitization, lower pH in pool and improve water clarity.<br> Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin