Frank M New Rochelle , NY May 03, 2019 The teeth on the control knob were worn off so we couldn't use the washer. It was 7 years ago that I had replaced it from your company I contacted your company, ordered a replacement knob, got delivery in a few days, pushed it onto the post, AND IT WAS DONE in 1 minute. Thank you. Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes