Skip to content
Ask Dr. Laundry

Ask Dr. Laundry

Disinfecting Water Fountains

By Dr. Laundry November 18, 2009

Q. I would like to keep the germ content down on desk top fountains. How much Clorox would you recommend I add to a gallon of water which would be used to fill the fountains?

A. For the situation that you described, I would try the following:


  • You need to make sure the fountains are well cleaned. If previously used, consider washing thoroughly, then running a solution of 1 tablespoon Clorox® Regular-Bleach/gallon of water. This should get rid of any residual bacteria and allow you to reduce the bleach level in the future.

  • On-going, I would think that 1 teaspoon Clorox® Regular-Bleach/ gallon of water should be sufficient to keep the water fresh. You might want to change it out on a biweekly or monthly schedule to insure it maintains it freshness.