Cause everytime that I drive my car I have to fill it back up with water...

Leaks can be difficult to find because they can change with temperature and pressure until they get worse. We will fill it with water and pressurize cooling system with a hand pump and a test gauge, put vehicle on a lift and look from below as well as from above. Some leaks can be internal into combustion chamber and out the exhaust or worse yet into the oil pan. Really difficult leaks may require strong dye to be added or can be intermittent from a seal on waterpump, If you can not do the test needed to confirm what has failed and is needed to correct call 757-456-0722, let us know if you need a vehicle to drive while we diagnose and repair yours.