With a flow rate of 18gpm normally, just how much water is that really?
A toilet will normally use about 2-3gpm, a shower 1 1/2-3gpm, a bathroom or kitchen faucet 2-3gpm, a dishwasher 2-4gpm, a washing machine 3-5gpm. When you start running more than one fixture (sink/dishwasher/toilet/etc) at a time, the gallons per minute add up quickly and those extra gallons from 1″ waterways can make quite a difference. Customer Satisfaction is our number one priority. We simply prefer not to sell low gallonage systems and our customers have written to thank us over and over.