If you have 2 teams in one pool that you don't want playing each other, you can prevent them from playing by setting prevent pool play match up.
- Go to Divisions
- Click the Division with the 2 teams that you don't want to play
- Click General Info with that Division
- Scroll down and click Advanced Settings
- Scroll down (near the bottom) and you will see Prevent Pool Match Up Between
- Select the teams you want to prevent from playing and hit Save.
- Now you can go back and generate pool games and it will prevent those teams from being matched up.