I never heard of adding water. I either add milk or nothing at all.

A little story from this end of a fire under the pan. Hope you don't mind Sandie.

My DIL was notorious for not cleaning the drip pan under the burner when something had boiled over. One day last summer my son was making an omelet, and next thing you know, flames were shooting out from under the pan. Whatever was in the drip pan caught fire. He turned the burner off (it was an electric range) and took the pan off the burner, but the flames didn't go out. In a panic he nearly ripped the fire extinguisher off the wall and was about to use it, when I calmly took the lid to the frying pan that was on the counter next to the stove, and put it over the burner and smothered the flames. Fire out!!! Sheesh - don't men think before they act??? Needless to say, he read the riot act to his wife, as she justly deserved it!

We now have a ceramic top range, so that won't ever happen again!