What is the concentration of pool acid?
What is the concentration of pool acid? Adding muriatic acid directly to your pool can create a hot spot of acid that can potentially burn or irritate the skin if you swim too early. Even diluted muriatic acid can potentially cause harm. Muriatic acid contains hydrochloric acid concentration levels between 28 to 35 percent. How do you measure pool acidity? Dip the pH color tube in the pool to your elbow and fill the tube to the top line. Add five drops of phenol red reagent, drop by drop. Compare the color of the water to the pH color scale....