A method for using a fluid testing system in fluid communication with a fluid piping system includes providing a pit housing, the pit housing defining an interior pit cavity, a curb stop valve of a curb stop assembly mounted within the interior pit cavity; opening the curb stop valve to permit fluid to flow through the curb stop valve and into a sampling pipe, the sampling pipe at least partially mounted within the interior pit cavity; and dispensing a fluid sample of the fluid from the sampling pipe through a sampling assembly, the sampling assembly mounted within a sampling station housing.