gas fill enviro-fill

Hello! We have been enjoying our new to us 2018 R23 this summer. Awesome boat! I have a question about the fuel fill. I am using one of these feel pumps on 5 gal cans: TERA PUMP Next Gen Rain-Proof Gas Fuel Pump with 4.25-ft Long Discharge hose, Battery Electric Siphon Pump with Auto Stop...