A:AnswerThe unit has a 3.3 liter water tank with a removable lid for refilling. You wouldn't want a sealed container as it would be extremely difficult to clean.
A:AnswerNo you do not, the only thing you need to do is plug the fridge into a power source. Then you fill the container(holds 1/2 gallon)that’s inside the door.
A:AnswerHere are the measurements from the User Manual:
Depth (less door) 19.3 in
Depth with door open 90 degrees 40.6 in
Height to top of door hinge 31.5 in
Height to Top of Refrigerator 31.1 in
Product Depth 21.7 in
Product Height 31.5 in
Product Width 20.3 in
