Guys, If I do 1/3 of my pond at a time with Alum, how long do I need to wait to do the next third? Thanks,

1 1/4 acre L shaped pond, 6 to 9 ft deep. Finished 7/7/16. Stocked with LMB, HBG, BG, CNBG, RES, FHM. Can't wait to fish it. GO SAINTS!!!