Brown Water from Faucets – Backflow Preventer or Other Source?

Brown water at faucets during peak irrigation season. Backflow preventer suspected.

Test

1. Shut off main valve to irrigation system.
2. Run house faucets—if brown water persists, source is not irrigation.
3. If clears, backflow preventer may be faulty—requires professional test.

Follow-Up

If backflow off but brown water remains, check for cross-connections (multiple irrigation feeds). Heads not popping up don't cause discoloration.