Natural Chemistry Stain Free Extra Strength Metal Remover, 1.75 lb Bottle | 17395NCM

How to Apply:

Note: Running your pool for several days without chlorine may encourage algae growth. Consult your pool professional for guidance on how to prevent algae during the stain removal process.

1. Balance Water Chemistry
- Adjust pool chemistry before using Stainfree Extra Strength:
- pH: 7.2-7.6
- Total Alkalinity: 80-120 ppm
- Calcium Hardness: 200-400 ppm
- Cyanuric Acid (CYA): Below 50 ppm
- Phosphates: Below 100 ppb
- Tip: Stain removers work best when pH is at the lower end of the range (around 7.2).

2. Prepare Your Filter
- Before starting stain removal or treating discolored water (Step 4), add a pulp-based filter aid to sand and cartridge filters. DE filters should be properly recharged.

3. Lower Chlorine Levels
- Reduce chlorine to 1 ppm or lower (High chlorine levels or oxidizers will prevent Stainfree Extra Strength from working properly).

4. Ongoing Prevention:

Use Metalfree™ weekly to prevent future stains—4 oz per 10,000 gallons once a week.

Important: Do not swim until the stain removal process is complete and chlorine levels have returned to normal.
- For Surface Stains: Turn off the pump and add 1 lb per 10,000 gallons directly over stained areas. Let sit overnight.
- For Water Discoloration: Set the pool to recirculate mode, distribute 1 lb per 10,000 gallons evenly around the pool’s edge. Let the pump run for 1 hour, then turn it off overnight.

5. Brush the Pool
- Before restarting circulation, thoroughly brush pool walls and floor.

6. Restart the Pump & Add Metalfree™

Turn the pump back on and pour 33.9 oz per 20,000 gallons of Metalfree™ evenly around the pool’s edge.

7. Vacuum Thoroughly
- While the pump is on, vacuum the pool floor and walls carefully to remove loosened stains and debris.

8. Clean the Filter
- Sand Filter: Backwash for at least 3 minutes, then rinse for 2 minutes.
- Cartridge Filter: Remove and clean thoroughly.
- DE Filter: Backwash and recharge with DE powder.

9. Rebalance Water & Avoid Shocking
- Do not shock for at least 1 week.
- If chlorine is low, add small amounts but do not exceed 2 ppm.
- For saltwater pools, use granular shock after one week instead of using the boost (superchlorinate) function.

Ongoing Prevention:

Use Metalfree™ weekly to prevent future stains—4 oz per 10,000 gallons once a week.

Important: Do not swim until the stain removal process is complete and chlorine levels have returned to normal.