TANK TRAILER WITH FLUID COLLECTION SYSTEM

A tank trailer is provided. The tank trailer includes a tank having an interior volume adapted to contain fluid, and a manhole extending through the tank and positioned proximate a rear portion thereof and proximate to ground level. The tank trailer also includes a ventilation system having a ventilation interface communicating with the interior volume of the tank, a ventilation access port having a ventilation outlet positioned proximate the rear portion and proximate to ground level and a ventilation pipe adapted to establish fluid communication between the ventilation outlet and ventilation interface. The tank trailer further has a collection system which includes a collection pipe coupled between the ventilation interface and the ventilation pipe. The collection pipe defines an internal volume shaped and adapted to collect fluid spilling from the interior volume of the tank through the ventilation interface and at least partially prevent fluid flow into the ventilation pipe.