Problems with sump/ skimmer!!! pls Help!

[Trigs]

Hey everyone well i come to you asking for help with my skimmer and sump and plumbing i guess for my 90 gallon 33 sump, i have pictures to illustrate my problems but i am having problems with noise and bubbles and not sure my skimmer is working correctly i just need as much help as you can give me well here are some pics im looking to get no bubbles and a clean tank thank you











as you can see its verry mirky.