well I finally got my tank filled this morning. The next thing was getting the Fluval 306 Canister filter going. The instructions say to use the automatic primer and pump up and down 4-5 time. Did that for a total of 15 minutes with stops in between. Still nothing, it wouldn't run. Finally decided to prime why it was running after about 10 pumps it started working. Must say even with those problems its a **** quiet filter.