[VFCA-75]
Sometimes space restrictions require the installation of Big Dipper units in basement locations where significant head pressure becomes a factor. The Big Dipper® VFCA Vented Flow Control module for W-750-IS & W-750-AST provides an option for use with installations where a significant amount of head pressure is present (greater than 6 ft./1.95 m) or where applicable regulations require vented flow controls. A Vented Flow Control helps reduce problems associated with high head pressure and helps slow the drainwater flow down. The VFCA kit contains an appropriate fitting and flow control orifice.