Test Equipment & Pool Water
Start with the obvious and scoop out any branches or leaves from the pool. Next, make sure the pump and filter are working properly and not clogged or damaged. Finally, test and balance your water, paying close attention to chlorine levels.
Applying Metal, Stain & Scale Control
For best results, add HTH® Metal, Stain & Scale Control in the evening. Do not add within 12 hours of the addition of shock products. Use the chart on the back of the product for correct dosage.
Use As Needed
Run the filter continuously and brush the stain regularly. Repeat, if necessary, one week later.