Hi Duquette5!
A stock Mac26X doesn’t have exterior to the hull “drain holes” per se, it does have three standard factory thru hulls though.
One for the engine well at the stern, one on the port side amidship for the galley sink and one on the starboard side amidship for the bathroom (head) sink.
There is one internal hole in the aft floor corner of the cabin sole at the mid line on many later models. ( Early models don’t seem to have that cabin floor “drain”.) This isn’t really a drain in the classic sense though, it’s really there to give visual warning that the center bilge is flooding. That was the factory design intent anyway as without it water would have to fill up anoypther 5 inches higher before leaking out the aft berth floor access panels which one might not notice is the mattress was in place or while on plane motoring.
There is a hole in the top deck of the cabin near the mast which is for the swing keel lift line (but that isn’t a drain).
A stock factory Mac26X also has a bilge fill gate on the bottom aft starboard face of the stern to allow filling and draining of the water ballast tank.
Depending on the vintage of your Mac26X there is a ballast tank vent located in earlier models in the fiberglass companionway cabin step or up forward under the center bow Vee berth hatch. Either location should have an expansion plug to seal it.
If you have more than those listed they would have been added by a previous owner (PO) and would be interesting to learn about.
There are no factory hull drain plugs on a Mac26X.
Best Regards
Over Easy



