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GLB pH Down 10 lb – Pool pH Reducer Pump Parts Equipped with smart navigation technologyGLB pH Down 10 lb is a fast acting granular pH reducer formulated to safely lower high pH levels in swimming pool and spa water. Maintaining proper pH balance is essential for effective sanitation, swimmer comfort, and protecting pool surfaces and equipment from scale formation. When pH levels rise above the recommended range, chlorine becomes less effective, water clarity can decline, and scale can form on pool surfaces, heaters, and plumbing. GLB pH
