Hi Hun!
Lets get this big boy started!!!
1. Fill baskets with media...
2. Fill canister, I would use tank water
3. Place the top on the canister, make sure all hoses are connected and tight...
4. Place hoses in tank
5. Plug it in...
I would make sure and listen for any air in the system. I know you said it was self priming, but it does happen on occasion...
Once you know it is running, I would check the output for flow amount... Just put your hand in front of it so you can feel the water coming out. There should be a fair amount of current!
IF you feel little to no water coming out, I would unplug the filter and check for air in the lines...
Let me know how it goes!