SLAM newbie help!

[caitym]

I bought the TFT pro kit and I’m helping an elderly neighbor with a green pool. The pool is slightly cloudy, but mostly clear now. I just cleaned the filters and noticed quite a bit of pebbles from the pebble tec that have come off and had to be hosed out of the filter housing. I have a fiberglass pool, so I don’t know much about this. I lasted added liquid chlorine last night, so it hasn’t been a full 24 hours yet. What’s my next step? Should I adjust the CH or TA or leaving it all as is? The current readings are:
FC: 27ppm
CC:1
CH: 125
TA: 270

I brought the pool’s PH to 7.2 before starting SLAM, but the TA was very high still.

 

[reggiehammond]

TA can be managed after SLAM as pH will rise quickly, necessitating very frequent muriatic acid additions. But that's not a short-term issue to worry about today.

Still registering a CC of 1 would lead me to think SLAM needs to continue, but SLAM process has three exit criteria.
SLAM Process

What type of filter? Some filtration options are slower than others.