M_Boats: Garboard Drain

Like I am sure many of you do, my M17 spends the winter on her trailer (she's actually been on her trailer for over a year now thanks to the pandemic) and I was considering a garboard drain to keep water from pooling inside while she is stored. I had one in my old SeaSprite 23 with it's long and deep keel, it did a good job of keeping any water that got past the companionway from filling up the bilge and I was considering doing this to the Monty as well. Has anybody done so? Art M17 #406