I just set up a Red Sea Prizm Protein Skimmer. The colletcion cup filled with clean water in less than 3 minutes and is now flowing down the air tube and also out of a small hole in the right front part of the top. I need to know if this is normal and i should continue operation. The water flowing down the air tube has me quite alarmed. I also need to know how i know when to empty the collection cup as the d*mn isreali instructions dont seem to cover it at all.