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.
The stack itself should be at least 4-inches in diameter. A T will be required to hook the drain pipe itself into the stack. The toilet drain pipes should be 3 or 4 inches in diameter and slope down toward the stack at a rate of 1/8 to 1/4 inch per foot of length or should be vertical to the ground. From trap to vent on a toilet with a 3-inch pipe should be no longer than six feet, and for a 4-inch pipe the distance is ten feet.