Patti,
Short answer is recirculate is great for the first hour or so, but let the filter do it's job. It will become apparent to you as soon as the chemical reactions start to produce the baqua-goo floaters. I am on recirc. at the moment because I was trying to isolate the filter to see if the sand was my source of FC loss. I am contemplating going back to filter overnight since am now about .5 ppm away from my overnight goal. This part of the process has been my experiment, and not really a recommend step by those who have been here before you and I have started.
When I added the first 2 gallons of chlorine, I had the pump on "filter" about 1/2 hour in I remembered someone saying recirculate would help, so I went to recirculate for about the next 2 hours. At that point, I got A LOT of floating yellow slimy foam floating to the top. (If you look into the water at this point, you can see the particulates rising through the water.) I figured that I should let the filter do it's job from there on out., so I went back to filter. I spent probably a good hour and a half standing on my deck pulling the surface scum towards the skimmer with my pole mounted floor/wall brush. My net was not fine enough to scoop up the foamy scum. A big tan colored wads of foam had accumulated at the top of my skimmer I just scooped them off with the skimmer lid turned upside down. The floaters are about like trying to scoop whipped cream off of the water with your net if you can imagine that.
By about 4:00 pm (7 hours from start) I had very little return pressure, so I decided to backwash. It probably took 3-4 minutes to get semi-clear water from the backwash hose. I backwashed at about 10:00 PM again with the same results. I left it on filter overnight, and backwashed early Sunday morning. My water was showing signs of clearing at this point enough to where I could see a granular looking pile in the center of the pool. By 4:00 PM on day 2 my water was back to clear, and I was able to see the film on the sides that needed to be brushed. I did one more backwash after this, and then on Monday evening I went to recirculate again. I don't know if it will be possible, but I am hoping to be able to get the FC overnight loss and CC within range before I would have to go back to filter. I am hoping a sand exchange is coming in the next few days.
Use visibility as a gauge on how the green water is progressing. At first I could see the blue of my brush about 12" down, and it progressed to about 30" by late the first night. Early on the second day, I had 30" plus of visibility, and by the 36 hour mark it was clear again.
Just stay with it the first day and it kind of seems to run it's course after that.