  The pandemic caused by the SARS-CoV-2 virus has threaten the face-to-face
teaching activity in both schools and universities. The transformation from
face-to-face classes to online activities yielded inefficient outcomes from the
activities. Particularly, a key issue was organizing laboratory activities
without accessing the labs. In this paper, we propose how to overcome this
problem by enabling the students to perform physics experiments of fluid
draining at home. In other words, the use of equipment commonly available at
home or that can be purchased at a low price is practically plausible. In the
present work, we do an experimental investigation of liquid draining through a
hole of a container. From an analyzing step, we introduce a freely-accessible
video analysis software, Tracker, to obtain accurate results. Interestingly, we
observe the effects of viscosity causing a delay of draining time of liquids.
Our study shows that a ratio of open-space radius of the container to the hole
radius, $\sqrt{\lambda}$, can be used to determine a draining time.
