Your Fast Flush unit requires a one-time installation that is quick and easy. A 1-1/4'' hole is drilled in the end opposite the drain using a circular saw. An "O" ring creates a seal between the attachment and the tank. The unit is secured using three provided screws. Check valve, elbow joint and hose fitting may be attached as shown (left). Fittings connected to the flushing unit do not need adhesives as there is no water pressure against them. This leaves them free to be taken apart at any time. The check valve prevents a backflow of any contents of the holding tank. A properly installed unit will last the life of the RV. (Detailed installation and operation instructions are included in the package.) |