This diethyl-p-phenylene diamine (DPD) solution reacts with residual chlorine in your pool’s water and turns it pink. The pinker the water, the more chlorine levels are present.
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This diethyl-p-phenylene diamine (DPD) solution reacts with residual chlorine in your pool’s water and turns it pink. The pinker the water, the more chlorine levels are present.
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