Flout systems are so unique, they take on a language of their own. 

Here is a glossary of  Flout system terms  :

Alternator: A device that causes two adjacent Flouts to dose alternatly.

Ballast: 1.Weight attached to the Flout to promote sinking at the start of the dose. 2. Concrete blocks or other dense material used to secure equipment and piping within a dosing chamber.

Built-on Shim: A bracket that is attached  to a Flout and swingpipe to perform as a shim. See also shim.

Control Ball: The ball in a Cuebox that moves from cell to cell, locking down a trigger float, causing the connected Flout to sink. Yes, it really is a billiard ball.

Cuebox: A device that causes two or more Flouts to dose in sequence.
Dosing: The act of storing up a volume of liquid and releasing it suddenly.

Dosing Chamber:  A tank that houses the Flout and the liquid that it will eventually dose.

Drawdown: aka DD. The vertical liquid drop between turn-on and turn-off of a Flout. 

Driftbar: An assembly of small pipe that guides the Flout and keeps it from drifting.

Extension Table: Placed under a Cuebox to get the required "set" height.

Flex Connector: The part of the Flout that serves as a hinge and conveys liquid during the dosing cycle.

Floating Outlet: See "Flout"

Flout®: aka Floating Outlet®. Attached to the outlet of a liquid storage tank, a floating vessel pivoting on a flexible pipe connection. When the tank is full the vessel sinks, opening the outlet to the contents of the tank.

Foam and Cement: A method of attaching new piping to an existing dosing chamber when mechanical coupling is not practical.

H-Fitting: The part of a trigger manifold that will allow liquid to flow to the trigger tube. SET is measured to it's centerline.

Multiflout: A Flout with more than one outlet. May be used to split flows or increase flows. May be used to eliminate distribution boxes.

Lift Float and Lift Cell: A float in a tube (cell) that lifts the control ball to the next trigger cell in a CueBox.

Set: The height of a Cuebox manifold where the liquid will flow to the Flout. It is measured from the mounting surface for the Cuebox, up to the center line height of the H-fitting of a locked trigger manifold. Normally measured from the bottom of the Flout, set may be more or less if Cuebox is mounted to a different height surface. Stated simply, it is the depth or liquid the Cuebox is standing in when the Flouts turn on.

Shim: A raised pad, block, or shelf  in the  chamber to keep a Flout from sinking below the outlet. See also built-on shim.

Shut-off Depth: aka SO. The depth of remaining liquid (measured  up from the bottom of the Flout) when the Flout shuts off and re-floats. It is generally 1 inch more than the swingpipe diameter. A 3 inch Flout has a SO of 4 inches. A 4inch has an SO of 5 inches.

Shut-off Flow: Flow rate into the dosing chamber may affect the ability of the Flout to drain, re-float, and shut-off. For a  4" Flout, flow should be less than 40 GPM per pipe. For a 3" Flout, flow should be less than 20 GPM. For 2", less than 10 GPM, and for 1", less than 3 GPM. There are a number of ways to improve shut-off at high flows. Keeping the Flout higher than the outlet helps. Special ballast arrangements are available.    

Swing Pipe: The section of pipe between the Flout body and the flex connector.

Tap: The point where a trigger tube enters the Flout.

Total Drop: aka TD. The drop from the inlet to the outlet of a dosing chamber.

Trigger Float and Trigger Cell: A float in a tube (trigger cell) that carries the trigger manifold in a CueBox. When the control ball in on the float, it is locked and prevented from floating.

Trigger Manifold: The tube attached to the CueBox that rises and falls to stop flow or deliver flow to the trigger tube.

Trigger Tube: The plumbing that carries liquid from the trigger manifold to the Flout.

Vent: A vertical standpipe between the Flout and the tank wall that allows air to escape the from pipe leading from the outlet during dosing. Vents balance flow from Multi-Flouts, equalizing flow to different elevations. Also serves as an overflow if the Flout should clog. Vents may also be set up outside of the tank.

Weir: The lower edge of the opening in a Flout body where the first liquid enters.