This might be of interest to darkroom users who use larger size packages of developers in powder form such as D-76, ID-11, Xtol and Bromophen etc, as it`s not always easy to find 5 litre size measuring jugs.
Yes, I've discovered that as well. I solved the problem by getting a 5 + liter refrigerator jug from the market, and marking a line where 4 and 5 liters of water ended up. I'd prefer an actual measuring jug like the ones in your link, but it works.