500 GPH FISH Box Pump not working too well

[Petrus]

My 92 has a good sized in-floor fishbox with a drain that is connected to a factory installed RULE 500 gph livewell pump located in the bilge area. IN theory, the pump is supposed to clear out any standing water in the box. The problem is that the through hull outlet is about 10 feet away near the stern on the stbard side. The water has to travel that distasnce then up about 24". Unless the box is about half full, the pump doesnt do anything. Have checked the hose and pump to make sure both were OK, then re-routed the hose to make the distance as short as possible. Any issues with changing to a Rule 1100 gph live well pump? I figured bigger is better over a longer distance. Have seen some threads about draw being an issue- what is that all about and what should I watch for?


MJ- Why do I think you know the answer to this? Read somewhere that you are the BILGE pump KING!

Thanks.