Thanks for dropping in. We're very sorry to hear about your experience with our Windex® Outdoor Sprayer. We expect this to leave a streak free shine every time. However, for heavily soiled areas, we recommend wiping sudsy area with a sponge to ensure all dirt has been lifted. Additionally, we ask that you be sure to not allow the product to dry before rinsing and rinse windows from top to bottom in temperatures above 55 degrees F. Rest assured, as this didn't meet our expectations, we'd love to make things right. Please give us a call at 1-800-558-5252 (weekdays, 8 a.m. – 5 p.m. CT) and provide reference number: 22565632. We look forward to your call. – Megan, SC Johnson Consumer Care