Follow these specs to set or edit the properties of your tanks. Check this table to see all accepted aliases for each property.
Qatium will process that information by running some validation checks and will try to fill any gaps.
Volume
Volume is not a required property in EPANET. It’s calculated from minimum and maximum levels, and diameter, when this data is provided.
Data you add to your GIS files
| Field | MaxVolume |
|---|---|
| Attribute | <number> |
How Qatium processes that data
If not specified, Qatium will calculate it from height & diameter.
Minimum volume
Data you add to your files
GIS files
| Field | Minimum Volume |
|---|---|
| Attribute | <number> |
EPANET
| Property | Minimum Volume |
|---|---|
| Value | <number> |
How Qatium processes that data
If not specified, Qatium will apply a default value:
| SI units | US units |
|---|---|
| 0 m3 | 0 ft3 |
Initial level
Data you add to your files
GIS files
| Field | Initial level |
|---|---|
| Attribute | <number> |
EPANET
| Property | Initial level |
|---|---|
| Value | <number> |
How Qatium processes that data
If the Initial level is not specified, but Maximum level information is provided, Qatium will calculate the Initial level as 50% of the Maximum level.
If neither Initial level nor Maximum level information is available, Qatium applies the default value:
| SI units | US units |
|---|---|
| 2 m | 7 ft |
Maximum level
Data you add to your files
GIS files
| Field | Maximum Level |
|---|---|
| Attribute | <number> |
EPANET
| Property | Maximum Level |
|---|---|
| Value | <number> |
How Qatium processes that data
If not specified, Qatium will apply a default value:
| SI units | US units |
|---|---|
| 4 m | 14 ft |
Minimum level
Data you add to your files
GIS files
| Field | Minimum Level |
|---|---|
| Attribute | <number> |
EPANET
| Property | Minimum Level |
|---|---|
| Value | <number> |
How Qatium processes that data
If not specified, Qatium will apply a default value:
| SI units | US units |
|---|---|
| 0 m | 0 ft |
Height
Data you add to your files
GIS files
| Field | Height |
|---|---|
| Attribute | <number> |
EPANET
| Property | Height |
|---|---|
| Value | <number> |
How Qatium processes that data
If not specified, Qatium will apply a default value:
| SI units | US units |
|---|---|
| 0 m | 0 ft |
Diameter
Data you add to your files
GIS files
| Field | Diameter |
|---|---|
| Attribute | <number> |
EPANET
| Property | Diameter |
|---|---|
| Value | <number> |
How Qatium processes that data
If not specified, Qatium will apply a default value:
| SI units | US units |
|---|---|
| 20 m | 70 ft |
We calculate the default value using the values for the Maximum Volume and Maximum Level properties to calculate it by applying the following formula:
Diameter = 2 x sqrt(maximumVolume/pi*maximumLevel
If the diameter is already specified, it will be updated with these results.
Qatium prioritizes tank volume information over diameter when Maximum volume and Maximum level are specified.
Overflow
Data you add to your files
GIS files
| Field | CanOverflow |
|---|---|
| Attribute | True, yes, on, si, sí, false, off, no, 0 |
EPANET
| Property | CanOverflow |
|---|---|
| Value | True, yes, on, si, sí, false, off, no, 0 |
How Qatium processes that data
If not specified, Qatium will apply a default value: True.
Elevation
Qatium only processes elevation data when it's included as an attribute in point assets like junctions, tanks, supply sources, valves, and pumps.
Data you add to your files
GIS files
| Field | Elevation |
|---|---|
| Attribute | <number> |
EPANET
| Property | Elevation |
|---|---|
| Value | <number> |
How Qatium processes that data
If you have defined both height and elevation for your tanks in the corresponding file, the result will be the sum of both. Otherwise, Qatium will define the elevation using the Mapbox elevation data.
Water quality
Currently, Qatium only supports water age to calculate Water Quality. To have accurate water quality data shown in Qatium, you must include the water age parameter in your files.
EPANET
- Set Parameter property to Age in the Quality options in EPANET
- Set the Initial Quality property for all the nodes. If not specified, EPANET assumes that the value is 0.
- Export the .inp file and upload it to Qatium to create a network or update an existing one.
GIS files
Include the Water Age property inside your GIS data. Then add a number (up to 2 decimal places) representing the number of hours.
| Field | Water Age |
|---|---|
| Attribute | <number = hours> |
Thresholds
Configure warnings by setting minimum and maximum thresholds for your assets. We'll let you know you if data falls below or above these limits.
To set thresholds, upload a .CSV file including the following columns:
| Column label | Asset | Property | Min | Max | Unit |
|---|---|---|---|---|---|
| Type of data | <string> | <string> | <number> | <number> | <string> |
- Asset: the asset ID.
- Property: could be flow, pressure, or level, for example.
- Min: the threshold minimum value.
- Max: the threshold maximum value.
- Unit: of the property.
For example:
asset,property,min,max,unit
J_00028,pressure,10,60,kPa
J_00029,pressure,10,60,kPa
Make sure the units for the threshold values match the units of the variable we're setting the warnings to:
- Pipe flow = flow unit
- Tank level = level unit
- Junction pressure = pressure unit
How Qatium processes that data
If not specified, Qatium will ignore it and you won’t receive any warnings.