Click on "Stations" menu on the bottom of the page
Hover over the pool that needs to be edited, then click on it. Once clicked, the page of the pool you selected will open. To edit the pool, click on the pen icon.
Click on the "Edit information" with a pen icon on the right side of the page to enable editing the pool information.
Once clicked, the page will switch to "Edit mode" and you'll be able to make changes to the pool's information. Click on "Update pool" to confirm the changes.
More on pool settings.