I have never noticed water comming out the exhaust holes at the back of my motor, at the top of the exhaust leg. Is this normal? I just put a new impeller and the nylon washer at the bottom of the powerhead/top of the copper tube from the water pump. Also replaced the gasket between the powerhead and its mounting. It run better than ever while fishing saturday i just don't remember water comming out the exhaust holes. 