DRAINING/FLUSHING FOAM AGENT TANK
Foam drained from foam tanks will need to be drained into properly marked and sealed
Both foam tanks are drained and flushed the same way. Foam tank B shown.
Gather suitable containers.
Attach drain hose (1) to FOAM TANK DRAIN valve (2).
Open expansion dome hatch (3).
Put FOAM TANK DRAIN valve handle (4) in open position and completely drain foam into containers.
Put FOAM TANK DRAIN valve handle (4) in closed position.
Properly label sealed containers when foam in completely drained from foam tank (5).
Remove fill tower screen (6) from foam tank (5).
Defoaming agent and water must be added to foam tank being flushed.
Add defoaming agent to foam tank (5).
Fill foam tank (5) with warm water.