The refrigerator condensate drain has no nut with sealant on the nipple where it enters the bottom on the inside. As a result any fluids that collect never actually rise to the level of the nipple protrusion, it just leeks into the bilge. The hose that is connected to the nipple under is also dry rotted. This may have been the cause of the strange material I have been finding in my bilge. This week we had a milk container leak in the fridge and I was seeing this white substance in the bilge. Check yours if you start seeing strange stuff in your bilge.