I have outdrive fluid leaking out of the water intakes. I noticed a very slow drip while the boat was parked in the driveway. Dropped the fluid and it does not appear to be milky. when i lowered the drive the rate of leakage did increase. I am guessing I have a bad seal but does anyone know which one it might be and an approximate cost to fix at a marina? Last time out, I didn't hit anything or cause any damage that I know of. As always, thanks for any great advice!