help with adjusting please

[poolhelp101]

THANK YOU SO MUCH for responding and guiding me.
i think i understand now what to do and i will begin this process as soon as i return from work this evening and let you know how i progress. i do have a question about the puck. i haven't used anything in the skimmer since i found this forum, but i do have left over HTH brand 3' chlornating tablets, is that okay to use in the skimmer for the puck or do i need to go by something else? just please let me know what to do on that. sorry for all the questions, but i have found that doing nothing until hearing from you guys on how to proceed on does steer me in the right way and gets my pool clear!
Thank you again!!! Thank you!