Metal Stain Removal

Based on 10,000 gallons

Day 1

• Add one quart (32 oz. /10,000 gallons) of MSI Metal & Scale Inhibitor*
• Add Citric or Ascorbic Acid 1#
• Brush stained areas of the pool
• Lower pH to 7.2
• Use the Next Generation LSI calculator to adjust water chemistry to attain a balanced LSI.

Days 2, 3 and 4

• *Add one gallon of liquid chlorine (1 gal. /10,000 gallons)
• Maintain 7.2 – 7.3 pH, while maintaining LSI value as close to 0.00 as possible.
• Brush stained areas of the pool

*MSI purge dose will wipe out chlorine levels. Each following day, adding chlorine is necessary.

Week 2 & beyond

• Start MSI weekly maintenance (3 oz. /10,000 gallons) until stains are gone.
• After 10-14 days, stain precipitous should be evident in the filter. Clean the filter as necessary (usually 2-3 times) over the course of the next week to remove the residue.

Optional:

• Add AAD Enzyme purge dose (32 oz. /10,000 gallons)
  • Start AAD Enzyme weekly maintenance the following week (5-10 oz. /10,000 gallons)
• Remove phosphates with CPR (4 oz. /10,000 gallons), applied only as needed. Allow 24-48 hours for reaction to complete, then vacuum to waste and clean filter.
• To speed up phosphate reaction, try CCE Clarifier (4 oz. /10,000 gallons).