# Kids Waste Water – Water Heater Math

Kids Waste WaterWater Heater Math: I have a 10 and a 13-year-old. They both like showers and that’s a good thing and all, but man, they take very long showers. It never fails, after they take their shower, there isn’t enough hot water for me. Now before you say, “You need a bigger water heater”, its 55 gallons and simply put it boils down to the amount of time in the shower.

So I gave the kids a lesson in “water heater math”.

### Kids Waste Water – Water Heater Math

I took the kids down to our basement and showed them what a water heater is. Then I explained what the water heater does, and how much water is in it. Next, we talked about what uses hot water and specifically focused on the showerheads.

To make the math easy on them, I said the showerhead gave them 5 gallons of water per min. If the water heater is 55 gallons, how long would the water heater last? With wide eyes, my oldest quickly answered 11 mins. “Wow Dad, I’m sorry, I had no idea.” Then I asked what if 2 kids are taking showers at the same time? My youngest quickly answered “Even LESS!” (I was looking for minutes, but I will take that answer.)

My oldest said she would take shorter showers now she knows this.

I know shower heads gallons per minute are much better than 5 gallons, and there are some water-saving showerheads at decent prices on Amazon, but I wanted to really get the point across and make the math easy.

Try Water Heater Math with your kids if you have long shower takers… let me know if you see a difference.