My Pool went from Dark Green to Clear, now what?

First and Foremost this site has been the most informative site I have ever been around. Our pool went from dark green to clear in a week following the advice given here, AND it didn't cost us an arm and leg on chemicals. I cannot thank you guys enough.

For reminders:
21,000 gallon above ground
Hayward Sand Filter
1.5HP Pump

Readings this morning:
PH 7.2
CL 9
AL 130
CYA 60

The water is clear, the backwash process no longer shows water greener than my grass. How do I get the chlorine down, and how do I maintain this? Daily chemical checks? This is my first pool, and you guys have made this easy so far.

Good job!
The chlorine will drop on its own. You'll want to check chlorine and pH every day and add bleach to keep it in the range suggested by the Best Guess chart for your CYA level. I would bump the pH up just a bit using 20 Mule Team borax, to 7.6. because you're sitting at the edge of the lower end now.
Keep up the good work.