Hello KimJ. Thank you for the feedback you posted on the Home Depot website regarding the
Flo 1 in. Water Leak Detector with Automatic Water Shut Off Valve. We're sorry to hear about your experience with your Flo by Moen Shut Off Valve. What you are describing is caused by iron or other metallic sediment that has collected on the turbine’s magnets and corroded, not the magnets themselves. We recommend installing an iron filter to prevent the issue from occurring in the future. The Flo by Moen Smart Water Shutoff includes a one year warranty and we offer an extended warranty for up to a total period of five years with our FloProtect Plan. For technical and warranty assistance, please contact us at 1-800-289-6636; our current business hours are Monday through Friday from 8:00 am - 7:00 pm EST.