Possible solutions
My experience is that rain often fills the bilge as much as leakage. Make sure you have taken preventive measures, such as a tarp over the boom, etc. If you truly do have leakage, then you need to get it fixed. A moldy boat is not a happy boat. I have duel bilge pumps that drain to transom, but I have never used them. I hope I do not have to. I think a 500 gph pump can be purchased and installed cheaply and is a sound investment.