The Linear Flow Orifice Meter riser pipe, LFOM, is located in the entrance tank. It is used in the plant when chemical dose flows are laminar. The LFOM tank creates a linear relationship between the flow rate through the plant and the height of water in the entrance tank so that a float system can be used control the chemical dose.
The Chemical Doser creates a directly proportional relationship between the plant inflow tank water level and the flow controller outflow tubing level.
The Flow Controller maintains a constant head level in a small bottle so that hydraulics can be used to dose a specific chemical flow rate solely by controlling the outflow tubing level.