22
Installation and Operation Manual
Outboard Pickup Diagram
Outboard Pickup Line
Switch to disconnect
Level Sensor when in
Outboard
Full Ported
Shut-off Valve
Full Ported
Shut-off
Valve
Strainer
Foam
Tank
Driver
Box
Foam
Pump
Assy.
Drain Lines
On apparatus with multiple drain lines, the drains
from the foam solution discharge line should not be
piped into a multi-drain system before the check
valves. The standard multi-drain system from most
manufacturers will allow cross talk between the
drain lines and the apparatus water tank, resulting in
contamination of the water tank with foam. A
separate drain system should be provided for the
foam solution piping to prevent contamination of the
water tank and fire pump.
Outboard Pickup
An outboard pickup may be adapted to the foam
pump inlet. The pickup should be positioned
between the foam tank shut-off valve and the foam
inlet line strainer. A tee the same size as the tank
to pump line may be placed in the suction line with
the side leg of the tee going to the outboard pickup
shut-off valve at the panel. A sealed quick connect-
type fitting may be mounted to the panel for easy
access. The outboard pickup line should not exceed
10 feet and the same line size and specifications as
the tank to pump line should be utilized. The shut-off
valves must be full ported valves and be air tight. A
switch must be provided to disengage the low level
sensor when using the outboard pickup. This switch
may be a separate panel mount or one that is tied
into the pickup valve actuator.
NOTE: The tank shut-off valve must be closed
before opening the outboard valve when
switching to the offboard pickup. The offboard
pickup valve must be closed before opening the
tank valve when switching to the foam tank
operation.
