Daihatsu Delta V57 fuel drain warning / won't start


Have replaced fuel filter, wires had broken off float switch on bottom of filter so have joined these but still no go.
Have primed about 100x (primer stuffed? As not getting harder to push as air bleeds)
Any clues pls?? On top of tank apart from fuel sender is a type of closed canister other than that from tank to filter to injector pump??