Talk:Water Purifiers/@comment-71.237.126.192-20160327230442/@comment-26748640-20160328164013

If you go to the Galaxy map, go to View>Map. Then you dont have to but you'll want to filter by economy and then go down to the Trade section and make sure to check "show trade routes" and then look through the drop downs to find the commodity you want. For this one it would be under machinery.

This will show you all the trade routes for the commodity. Look for a system where all the trade routes are leaving the system. That system should have a station that sells it. Next go to the system map for that system and find a station that has the correct industry. In this case it would be industrial. That is your station.

Alternatively you could use one of the 3rd party apps that shows where they can be found, but  you will have to travel farther to reach the station.