To begin at the top of the pay scale with the highest ranking law enforcement officer in a city police department other than the commissioner, the police chief is paid anywhere from $90,000 to $114,000 in base salary.
A toilet's drain must be run at 1/4 per foot minimum grade when horizontal. A toilet cannot be installed upstream of any wet vented fixture. The maximum vertical fall of the drain is 1 meter(39 inches) and the maximum horizontal run is 3 meters before it connects to a vent. All downstream drainage after the connection of a third toilet on the same horizontal pipe must be 4 diameter or larger.
What You'll Need. Accurately calculating the slope of your drain pipe is essential to the proper function of your plumbing fixtures. According to plumbing code, drain pipe has to be sloped a minimum of 1/4-inch per foot and a maximum of three inches per foot or vertical.