Brown, rusty, or dirty water appears after regeneration.

Safety: Run water to a drain or outside hose until clear before using for drinking. Wear gloves if handling resin or iron sludge.

• Flush system: After regeneration, run cold water at a bathtub or outside spigot until water clears.
• Check backwash rate: Verify the correct backwash flow control is installed for your tank size. Replace with the proper Pentair backwash flow control if oversized.
• Iron treatment: If on well water with high iron, consider pre-treatment (iron filter) or periodic resin cleaning with an iron-removal product.
• Distributor tube: If resin beads are found in faucets, the internal distributor tube or bottom screen may be cracked and the Pentair distributor tube assembly should be replaced.