I dont see how water could passively leak out if your hose is going through the top cap next to the bilge outlet. That location will be higher than the water level of your livewell. Therefore, water cannot rise above the level of the livewell. It sounds like you should be fine if you follow BCBs recommendation. I have that same setup on my boat and have never had a problem. KentKent Charles 2002 Pantera Classic & 200 Yamaha VMax