Step1: Mix. Prepare a cleaning solution by mixing 1part muriatic acid with 10 parts water.
Step2: Rinse. Wet down the surface you’re going to clean with clear water.
Step3: Spray or Brush. Apply the muriatic acid with a sprayer, or brush it on using a hard-bristle
broom or a scrub brush.
Step4: Rinse Again and Scrub.