---
title: "Initial Quality"
canonical: "https://help.innovyze.com/space/infowaterpro/18055519/Initial%20Quality"
format: markdown
---
Initial Quality provides a way to enter an initial water quality for a given node.

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To specify the initial quality for a given node, do the following to bring up the Initial Quality dialog box.

Select a node (junction, tank, or reservoir) on the map.

Go the **Attribute** tab of the **Model Explorer** dialog box.

![image](media://2bb79961-6ecb-4309-9c0b-75e981c1dc93)

Click on the **Initial Quality **> Macro (inline-media-image)

button (see above) from the toolbar or choose the** Initial Quality** command from the **Tools** drop-down menu> Macro (inline-media-image)

.

![image](media://545bdad8-3854-4bef-9741-a13e546f498a)

Initial Water Quality - Enter an initial water quality for the specified junction node, tank, or reservoir.

Purge - Use the **Purge** button to erase the data associated with this entity.

Create - Click on the **Create** button to save any changes or additions and exit.

Cancel - Click on the **Cancel** button to exit without saving changes.


To set the initial quality for a group of nodes, put those elements into domain, select the **Group Editing tool**, and click on the **Initial Quality** tab.