help wif skimmer

[MCC]

hello everyone..i m starting out my first sw tank..and I'm having problems already

I have a problem with my seaclone 100.....
it doesn't seem to work properly..or I dont know how to work it

I cant slow down the small bubbles, they're flying everywhere in the tank...and the cup is overflowing with water/bubbles in less than an hour!....

is it broken or am I doing something wrong?

plz help me out asap.....thanks