Gladly..... Click here for information on plumbing code constant SFR gpm sizing requirements. The gpm needed varies widely from one code to another (there are 4 codes) and, it is calculated as if every faucet in the house is running at once.
This was pulled from the link you provided. You push to size units based on SFR of the home which means every fauset running. How many times on your life will you have every fauset on at the same time?
Why can't you get over the fact that I don't set my units the same as you. Do you have a hard on for me? Is that why you always harrass me?