My pump broke a week ago and I am closing

[Cutiepie]

I have a inground 30,000 gal vinyl pool and a week ago my pump stopped running. I want to close now and put a new pump in come spring. It is starting to turn green. Of course I would like to close clean. What do you suggest? More chlorine? And algicide?
Thank you in advance

 

[HermanTX]

You will need to vacuum out the dead algae if your if you can not pump through the filter.
You can purchase a submersible pump and connect a hose to it to reach the opposite side of the pool so you can circulate.
Only add chlorine. We use the SLAM Process. How do you test your pool water.

I would try to kill and vacuum out as much algae as you can, then close.