There is always a mix up and a little misunderstanding between the difference of water closet and closet in Nigeria. Nigerians are still yet to recgonize the difference between those two objects. But there is just one big difference between water closet and closet. The difference is;
WATER CLOSET: uses automatic flush direct from the water source. All you need is just to use the automatic jear of button to flush.
CLOSET: uses manual flush direct from the user. The user uses his/her bucket to flush the closet. It is not connected to any water source. Therefore the user will have to come with a full bucket of water.
Disclaimer: If you're still confused if the closet in your toilet or bathroom is automatic or manual, water closet or closet. This is a thread for you to know!