Total cost
What it costs over time.
Set your household and what bottled water costs you now. This works out what a K8 costs to own over five, ten or fifteen years, filters and electricity included, against what you are already spending.
Your household
4 people
0.5 gallons
$80 a month
Over 10 years
These are estimates. Real figures vary with how much water you use, your water quality and your local electricity rates.
Break even
You keep about $390 over 10 years.
The machine has paid for itself by about year 9.4.
These are estimates. Real figures vary with how much water you use, your water quality and your local electricity rates.
What a gallon costs you
4 people at 0.5 gallons a day is 2 gallons a day, or about 7,300 gallons over 10 years.
Both figures are worked out from your own numbers. The bottled figure is your monthly spend spread across the volume you told us you drink, not a shelf price.
These are estimates. Real figures vary with how much water you use, your water quality and your local electricity rates.
Household size and daily amount set the volume, which is what the cost per gallon is worked out against. They do not change the two totals above. Those move with your monthly bottled spend and the time horizon.
The only thing the machine is measured against here is your own bottled water spend, which is a figure you gave us. No other brand is priced on this page, because we hold no source for one.