The Set all assemblies at this location to the service location's water purveyor checkbox is a one-time setting that allows you to change the water purveyor for all backflow assemblies at a service location instead of changing them individually. Similarly, the Set all assemblies at this location to the service location's notification month checkbox is a one-time setting that allows you to change the notification month in which you notify customers for all assemblies at this service location.

For example, let's say there are 10 assemblies at a service location, and you want to change the water purveyor and notification month on all of them. You can select these two checkboxes to change this information all at once.

1. Find the customer for which you want to update the service location's water purveyor and/or notification month.
2. On the Customer page, click Edit in the top left corner of the page. 

3. Scroll to the Same as Customer section of the customer's page.

4. Select the Water Purveyor that you want to use for this service location.

5. Check the Set all assemblies at this location to the service location's water purveyor box.

6. Select a Notification Month that reflects the month you notify customers.

7. Check the Set all assemblies at this location to the service location's notification month box.
8. Scroll to the bottom or top of the page and click Save Customer. 

All assemblies at this service location now have the same water purveyor and/or notification month.