Water Transfer from Outside 55 gallon Drum

[YOYOYOReefer]

Or double /triple up with 1/4 inch lines if those are easier to hide or run

 

[jda]

You need bigger hose That is the only solution if you want this done faster.

You can get 50 foot lengths of 1/2 ID or 5/8 ID on amazon - should be able to handle 7 gallons in a minute or two.