What Chemical is Used for pH Down?
                                
                                
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                                    4 min read                                
                            
                                High pH levels in water systems, such as swimming pools, can cause skin irritation, equipment corrosion, and reduce the effectiveness of sanitizers. To correct this, acidic chemicals are added to lower the water's pH, with the two most common options being muriatic acid and sodium bisulfate. The choice of chemical often depends on the specific application and safety considerations.