> I don't understand. Are those imperial gallons, US gallons, US dry gallons, or Irish gallons, which are all different sizes? Imperial and US gallons would bo

> I don't understand. Are those imperial gallons, US gallons, US dry gallons, or Irish gallons, which are all different sizes? Imperial and US gallons would both make sense, and you're right it's ambiguous. Dry gallons would not make sense, since this is a liquid quantity, and Irish gallons are long obsolete.