Yes, you can. In fact, pure water is a more effective coolant than any mixture of water and antifreeze. However, it is not recommended that you run pure water in a cooling system for an extended length of time. Not only does antifreeze protect against freezing. It also contains corrosion inhibiters, which help prevent your engine and radiator from succumbing to corrosion. For these reasons, using only water in your cooling system is something you should do only when you have no choice (such as a roadside emergency). However, if pure water is used in a cooling system for this reason, the cooling system should be drained ASAP and refilled with the proper mixture of antifreeze and water.
When a car is hot, keep the car running and add water to the radiator. When a car is cold, you can simply put the water into the radiator.
No it is not. It could be a problem with the radiator, a radiator hose or a water pump. In any situation, it could cause the motor to overheat and damage it severely.
Water
A radiator cools the water that flows around the engine.
remove your radiator form your car then poor some hot water in radiator till water comes out nice and smooth.
broken drive belt
It will be safe to drive short distance as long as the car does not over heat. You can top up the engine coolant or use water/coolant mixture till you fix the problem which could be leaking hose pipe. leaking radiator or faulty radiator cap
There are several causes that will reduce the water level in your car radiator. The most common cause is evaporation. Engine overheating will also reduce the radiator water level.
Pure distilled water.
The radiator cools the water which then goes to your engine to cool it off, as cool water enters your engine hot water from the engine enters your radiator
In a car the water pump circulates coolant through the engine and to the radiator.
It means you have a "BIG" leak. I would check the bottom of the radiator or the lower radiator hose.