GIS-IDs: List of associated IDs on the GIS/data-source side.
Hyperlinks: Associate one or more web link, photo, word processing document, or other file with this element.
Include in Energy Calculation?: If set to true, cost generated by the element will be included in the calculations, otherwise they will be excluded.
Has Separate Inlet?: Specifies whether this tank has a separate inlet pipe (only significant when modeling top fill tanks or throttling inlets).
Inlet Pipe: Specifies which pipe will be used to model a top fill inlet, throttling inlet, or both.
Tank Fills From Top?: Set this to true if you wish to model a top fill inlet.
Level (Inlet Invert): Specify the invert level for the inlet. If the upstream HGL is lower than this level the tank will not fill.
Inlet Valve Throttles?: Set this to true if there is a throttling valve (such as a float valve) on the inlet.
Discharge Coefficient (Fully Open): Specifies the discharge or flow coefficient of the inlet valve in its fully open position.
Level Inlet Valve Fully Closes: Specifies the level at which the throttling valve becomes fully closed allowing no more flow to pass into the tank.
Valve Characteristics: Specifies the valve characteristics definition to be used for this valve. If the Valve Characteristic Curve is not defined then a default curve will be used. The default curve will have (Relative Closure, Relative Area) points of (0,1) and (1,0).
Valve Type: Choices: Butterfly, Needle, Circular Gate, Globe, Ball, User Defined
Elevation (Base): Elevation of the storage tank base used as a reference when entering water surface elevations in the tank in terms of levels.
Elevation (Maximum): Highest allowable water surface elevation or level. If the tank fills above this point, it will be automatically shut off from the system.
Level (Maximum): A reference level to compare the hydraulic grade in the tank. Does not influence the calculations.
Diameter: Diameter of tank with constant circular cross-section.
Area (Average): Cross-Sectional area of tank for constant x-section tanks.
Volume Full (Input): The full active volume of the variable area tank (i.e., the volume at 100% depth), exclusive of any inactive volume.
Operating Range Type: Choices: Elevation, Level
Section: Choices: Circular, Non-Circular, Variable Area
Cross-Section Curve: Defines a curve which specifies the relationship between depth and volume.
Specify Local Bulk Rate?: If true than a local Bulk Reaction Rate can be specified for the tank, otherwise the bulk reaction rate associated with selected constituent will govern.
Bulk Reaction Rate (Local): Coefficient defining how rapidly a constituent grows or decays over time.
Tank Mixing Model: Choices: 2-Compartment, Completely Mixed, FIFO, LIFO
Compartment 1: Percent of available storage that makes up the first compartment. Inflow and outflow is assumed to take place in the first compartment.
Compartment 2: Percent of available storage that makes up the second compartment. The second compartment receives overflow from the first, and this overflow is completely mixed.
Elevation (Minimum): Lowest allowable water surface elevation or level. If the tank drains below this point, it will be automatically shut off from the system.
Volume (Inactive): The inactive volume of the tank. This volume is the inaccessible volume of the tank that is below the tank active operating range and can become important in water quality simulations subject to the selected mixing model.
Level (Minimum): Lowest allowable water surface elevation or level. If the tank drains below this point, it will be automatically shut off from the system.
Elevation (High Alarm): The elevation above which the high level alarm is generated. Calculation notifications are produced to advise you of any alarm level violations.
Level (High Alarm): The level above which the high level alarm is generated. Calculation notifications are produced to advise you of any alarm level violations.
Elevation (Low Alarm): The elevation below which the low level alarm is generated. Calculation notifications are produced to advise you of any alarm level violations.
Level (Low Alarm): The level below which the low level alarm is generated. Calculation notifications are produced to advise you of any alarm level violations.
Use High Alarm?: Specifies whether or not to check high alarm levels during Steady State/EPS calculation and generate messages if the levels are violated.
Use Low Alarm?: Specifies whether or not to check low alarm levels during Steady State/EPS calculation and generate messages if the levels are violated.
Elevation (Initial): Starting water surface elevation/level in the tank.
Level (Initial): Starting water surface elevation/level in the tank.
Installation Year: Specify the install year of the element. It does not affect the calculations.
Elevation (Initial, Transient): Enter a value only if a check valve is installed (i.e., case of a one-way surge tank), or there is an initial inflow/outflow head loss. By default, the intial water surface level is taken equal to the head in the adjacent pipe.
Report Period (Transient): Number of time steps between successive printouts of operation. By default, this printout is suppressed.
Demand Collection: A collection of baseline demands and associated temporal patterns.
Unit Demand Collection: A collection of unit demands, associated unit counts, and temporal patterns.
Elevation: Elevation at centroid of junctions, valves, and pumps; the ground elevation at tanks; the hydraulic grade at reservoirs.
Trace (Initial): Specify the initial trace amount at the current location.
Zone: Specify the zone for the element.
Concentration (Initial): Specify the initial concentration for the global concentration at the selected element.
Is Constituent Source?: If true then the selected node can inject a set concentration of the global constituent into the system.
Pattern (Constituent): Specify the pattern which dictates how the injected constituent concentration varies over time.
Concentration (Base): This data field allows you to specify the corresponding constituent concentration at this node over time.
Mass Rate (Base): This data field allows you to specify the corresponding constituent mass rate at this node over time.
Age (Initial): Specify the initial age of the fluid at the selected element.
Relative Closure (Calculated, Inlet Valve): The initial relative closure used at the start of a steady state or EPS run. (A relative closure of 0% means the valve is 0% closed, or 100% open. Conversely, a relative closure of 100% means the valve is 100% closed or 0 % open).
Discharge Coefficient Setting (Calculated, Inlet Valve): The discharge coefficient of the throttling inlet valve at the current time step. (Only applies if the inlet throttles).
Headloss (Inlet Valve): The headloss across the separate inlet valve at the current time step.
Hydraulic Grade (Inlet Valve, From): Calculated hydraulic grade at the entrance of the separate inlet valve.
Hydraulic Grade (Inlet Valve, To): Calculated hydraulic grade at the exit of the separate inlet valve.
Status (Calculated, Inlet Valve): Choices: Active, Inactive, Closed
Volume Full (Calculated): The full active volume of the tank between the limits of the defined operating range, exclusive of any inactive volume.
Level (Calculated): Difference between calcuted hydraulic grade and the base elevation of the tank.
Volume (Calculated): Total volume of fluid in tank including the inactive volume.
Percent Full: The ratio of tank active volume to the calculated tank full active volume. Active volume is the tank volume within the operating range and is exclusive of inactive volume.
Status (Calculated): Choices: Empty, Emptying, Filling, Full, Stagnant
Flow (Out net): Net flow out of the element.
Flow (In net): Net flow into the element.
Demand Adjusted Population: Population of area supplied by current node. This value is derived from the unit demand loads applied to the collection and their equivalent populations.
Hydraulic Grade: Calculated hydraulic grade at node.
Age (Calculated): Age at selected element for current time step.
Trace (Calculated): Trace at selected element for current time step.
Concentration (Calculated): Concentration at selected element for current time step.
Has Calculation Messages Now?: If true then the current element has associated calculation warning messages for the current time step.
Head (Maximum, Transient): Maximum head at node over the course of the transient simulation.
Head (Minimum, Transient): Minimum head at node over the course of the transient simulation.
Pressure (Maximum, Transient): Maximum pressure at node over the course of the transient simulation.
Pressure (Minimum, Transient): Minimum pressure at node over the course of the transient simulation.
Air Volume (Maximum, Transient): Maximum air volume at node over the course of the transient simulation. Not applicable to Reservoirs and Rating curves.
