interceptor and skimmers

[sdietz2469]

so i dosed my first dose of interceptor last night. i did a 4x dose that is 2 whole pills in my 120 w/40 gal sump(closed loop also), and this morning i went to add my carbon, and put the aitline back in my skimmer, and when i plugged my airline back in, i am now not getting any foaming in my skimmer, i see that air is going in, but dont see any foaming action at all.... is this normal? i have a few friends hear that have treated and they said that they didnt do a waterchange just added carbon, and turned their skimmer back on... is this normal? will it correct itself? is there any thing i should do?