A coffet pot holds 6 8 oz cups of water The water filter that services the coffee maker is rated for 1500 gallons How many cups of coffee can be made on one water filter?

G'day,

well, 1500 gallons is 192,000 fluid oz. (using google; type "1500 gallons in oz") 8 goes into that 24,000 times. You can have 24,000 cups or to put it another way you can fill your pot 4000 times.

or if you had a PROaqua 4200, you could just regenerate the filter rather than replacing it and not worry about the math. http://www.provitec.com.au