[abl1111]

Is it fresh or salt water ?

Is it in the bilge or pooling on the outside of the stringers and overflowing into the bilge ?

If fresh water - could be leaking from the brass tubes that drain from the transom ice boxes... I had a leak there - it's a high flex spot, the flange and sealant gets loose and water can get in through there.

Also, check your washdown hose connections - under pressure they could be leaking...