Cleaning & Organizing Cleaning Supplies DIY Toilet Bowl Cleaner Make your own eco-friendly toilet bowl cleaner at home with just two household ingredients. By Martha Stewart Editors Martha Stewart Editors Facebook Instagram Twitter Website An article attributed to "Martha Stewart Editors" indicates when several writers and editors have contributed to an article over the years. These collaborations allow us to provide you with the most accurate, up-to-date, and comprehensive information available.The Martha Stewart team aims to teach and inspire readers daily with tested-until-perfected recipes, creative DIY projects, and elevated home and entertaining ideas. They are experts in their fields who research, create, and test the best ways to help readers design the life they want. The joy is in the doing. Editorial Guidelines Updated on July 1, 2020 Share Tweet Pin Email What You'll Need Materials 1/2 cup of vinegar Toilet brush 1/2 cup of borax Instructions Add 1/2 cup vinegar to the toilet bowl, let stand a few minutes, brush, and flush. If you have hard water, let the vinegar sit for an hour, and you may have to do some light scrubbing. To remove stains, add 1/2 cup borax to the water, swish it around, and let it soak overnight.