This week’s post comes from Bob McClain, Franklin Electric’s Technical Specialist, Drives & Controls
Just a few decades ago, the average new home was around 1,000 square feet, had three bedrooms and one bathroom (one and a half baths if it was an “upscale home”). The typical day consisted of dad getting up, showering, going to work and mom spending the day getting the kids off to school, doing some laundry during the day, and hand washing the dishes after dinner.
Fast forward to today. The average new home is more than twice as large, even though we have fewer children. There are at least 4 bedrooms, with 4 to 5 bathrooms. Mom, dad and the kids all get up in the morning within an hour of each other and take showers before heading out the door for work, school, or daycare. Then, the water system probably isn’t used for the next 8 to 9 hours. But come evening, it’s showers for everyone after ball practice, along with running the dishwasher and washing machine. Throw in lawn irrigation or a geothermal system, and you see that today’s water system needs are nowhere near what they were like just a few decades ago. Not only are the total requirements greater, but water demand is far more driven by peak demand.
So, more than ever before, it’s not a matter of how much, but how much when. An extreme example really illustrates this – On average, each person in North America uses 105 gallons of water per day. Doing some quick math, a 3 gallon per minute well and pump can produce 4,320 gallons per day. That’s enough water to supply a home of 41 people, but unless water the supply is very limited, no one installs 3 GPM pumps. The reason of course, has more to do with our lifestyles than it does with the math.
So, we have to size our water systems based on the consumer’s lifestyle, and especially focus on that one hour in the morning and those three to four hours in the evening. This is where constant pressure, variable speed systems really shine. By matching the performance of the water system to the demand placed on it, these systems provide the water delivery that your customers demand and matches their lifestyle. That’s a good deal for them and for you.