Open up fresh tabs (you may want to flood first, but with this method it matters little) or windows (using the room=URL links); two for Room 1, three for Room 2, and three for Room 3.
Submit the following into each consecutive tab but don't click Go yet.
1. (you need an account to see links)
2. (you need an account to see links)
3. (you need an account to see links)
4. (you need an account to see links)
5. (you need an account to see links)
6. (you need an account to see links)
7. (you need an account to see links)
8. (you need an account to see links)
Take a deep breath. Go. Refresh tabs/windows (using the actual refresh key or browser button and NOT the link above the pictures) like a Mad Plumber Wizard, orderly or randomly.
Firefox: (you need an account to see links)
Chrome: (you need an account to see links)
These two addons will set the tabs to auto-refresh. Doing it this way, I was able to get my water plant done in less than five minutes.