DH and I have noticed that while on the cruise we have to get up 1-2 times a night to specifically go “#1”. We think maybe it’s the lack of minerals in the desalinated water ? Maybe the presence of sea water all around us ? We’re not sure , but anyone else experience the same issue ? We don’t particularly up our liquid consumption and we have noticed this in colder climates as well, so that may rule out imbibing more in warmer temps .