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title: "Viewing and Managing Loss Values"
canonical: "https://docs.rubiconwater.com/space/NWNC/2000978474/Viewing%20and%20Managing%20Loss%20Values"
format: markdown
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> Macro (toc)

Use the Losses module, the Network Editor, or the Planning Schematic to change the loss value of a reach or pipe, and to view the history of loss values.

> ℹ️ **Note**
> ℹ️ 
> ℹ️ If you set a loss on a reach, it is helpful to give the reach a meaningful name. Reaches are not required to have a unique name, so it can be difficult to identify the correct reach in the Losses module if it does not have a name.

# View Losses in the Losses Module

> ℹ️ **Note**
> ℹ️ 
> ℹ️ You do not have to search for losses if you are logged in as a planner. The losses for your area are loaded automatically and the Find option is not available.

1. In the Losses module, click **Find**
2. Enter the Area or Group for which you want to display losses.
3. If you want to exclude all reaches and pipes, clear the **Show zero-value losses** checkbox. This is checked by default.
4. Click **Find** to load losses for the area.

# Change the loss of a reach in the Losses Module

(You can also set the properties of a reach in the Network Editor or the Planning Schematic.)

1. In the **Losses** module, select the loss that you want to change.
2. Click **Modify**
3. Enter the new **Loss value** and the **Date** when the value should take effect (this defaults to the present date and time).
4. Click **Save** to save your changes.

# View historical values for a loss:

1. In the Losses module select the loss that you want to view.
2. Click **History** to display a list of historical loss values.

# Losses in the Planning Schematic

When a loss (other than zero) is set on a reach, the reach is displayed as a green line on the Planning Schematic.

To view the loss attribute value, right-click on the reach and choose **Details**.

- To change the loss value, choose **Modify**
- To view the loss history, choose **History**.

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