So on both sides I'm getting a little water coming through the black "Right Stuff" sealant and clear silicone sealant - I can see water coming out from underneath the black Right Stuff and clear silicone sealant. What is the best way to fix the leaking? Do I need to remove all the old Right Stuff and Silicone sealant - knowing the hull is now a bit dirt and oil saturated, will the new stuff even adhere well enough to fix the leaking?