Yesterday, I began the 13-Gallon Challenge – a pledge to live on a human right allocation of 50 liters (13 gallons) of water each day for a period of one week. So far, this pledge has been a great way for me to analyze my daily water use and, in general, think about water consumption. To record my water use, I keep a journal with me throughout the day. After I use water (for example: toilet flushing, hand washing, dish washing), I write it in my journal. This task has been a bit more challenging than one might expect.
My first day of the water pledge, I was at work during the day. Unfortunately, the automatic-flush toilets really ramped up my water usage. At least the toilets were the low-flow variety. Also, I noticed that sometimes my water use occurs on auto-pilot. I use water before I realize that I’m using water: washing my hands, flushing the toilet, or rinsing a dish. But, when you have to write it down, you really start to NOTICE these things. Throughout the day, I thought “there goes 1.6 gallons, there goes 1 gallon,” and it all adds up.
Here are my water use totals. Notice, no shower.
Yesterday, I exceeded my limit by a half-gallon. Today, I am under my limit by a half-gallon to make-up for this exceedance. And, I’ve even managed a 3-minute shower. In general, my water usage is consistent with data provided by the American Water Works Association (AWWA). Almost 50 percent, 6.4 gallons, of my water use is for sanitation. Our friend at Water Crunch created this great graph that shows percentages of water used in a typical home in the United States using data from AWWA. As you can see, toilets use the most water.