In my greenhouse a plant drank 10 liters per day in summer... soil can get dry very quick !
Maybe your soil is too dry and can't keep a lot of water in one time, because too dry.
If so : put the whole pot in water, wait one hour, get it out and let all excessive water run off.
In the future, if you think there is a suspect run off, water your plant in 3-4 parts : little water first time to get the top soil moist so it can take the next water, 30 min later, more water, and so on.
A good way to know if the soil is too dry is to take your plant in hand every day, lift it, so you'll learn to weigh it and know the normal wight of a moist substrate.