Scott, Yes there are small hose barbs glassed to the bottom of the gutter trough (1 for each hatch) at the lowest point, I used clear vinyl hose, 1/2" ID, from each barb to a tee on a larger trunk hose, 1 1/4", which runs to a bronze thru hull mounted in the boot stripe on the side of the hull. I am going on memory on the hose sizes but it is close. The gutters will still dump in the bilge if they get too flooded, since there are no gaskets, but the system works pretty well if I keep the trash out of the drains. I would use a high quality hose with double clamps at the thru hull just in case. Mine is approx 3"-4" above the waterline.
Greg
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