Help needed setting up tunze skimmer

[l2eVoluti0n]

Hey, i have a tunze skimmer(not sure what model) that i got from a guy when getting a tank from him. this skimmer came with no instructions or anything. below i will attach the picture. once u see the picture maybe u can answer some questions.

http://i22.photobucket.com/albums/b333/PBSnip3r/Pakistan%20Trip%202005/IMG_0004.jpg

Will this skimmer be good enough for a 75 gallon tank and a 25 gallon sump?
How do i get it to start skimming?

In the picture there is a red line and a yellow line. the red line is where the water is up to in the sump and the yellow line is where the water is getting pushed up to with the tunze pump. it doesnt even look like its skimming its always at the bottom of the cup. how to i get it to skim.

thanks for ur help in advance.

[l2eVoluti0n]

bump

[Shy_Koi]

I'm not sure which model you have, but mine is a 220/3 which looks very similiar, and rated for up to 90g. The sump's water level should come to somewhere between the top of the brown base of the skimmer and 1/2 way up the clear reaction chamber. It looks like your's may be set too deep...
Try posting over at the <a href="http://www.reefcentral.com/forums/forumdisplay.php?s=&forumid=92">Tunze forum</a> and I'm sure that Roger will be able to help you out specific model instructions.
HTH,
~Tamara

[l2eVoluti0n]

thanks just one more question. u said that the water should be half way up the reaction chamber. theres a hole in my reaction chamber maybe in yours also not sure, but should the water be above that hole?