It takes a minute or two before seeing water coming out especially after being winterized. Spraying out the side of the fake a lake is ok as water has to go somewhere. If anything, the water pressure may be a bit high but it won't affect the water going into the engine. Just check the engine by feel to make sure it doesn't get too warm. You can shut the engine off, let it cool and try it again. The water should be in the system the second go around.