Brent, I run it every 3 to 6 days. There have been stretches of up to 11 days. Brent, I doubt with me running a machine only about 5 or 6 times a month, there would be any significant impact. Between the old & new, that's about an 18 gallon difference. Now, having the front load washer, I did see a significant decline in my winter water consumption, which is used to factor my usage & sewar consumption rates.