Very cool! Instead of making 2 holes, could you instead lift the floor, rotate it 180 degrees, and place it back down with the single hole over the fresh side? That way, no chance of little ones slipping in and you don't have to cover up the old hole too. I'd guess it depends on how you laid out the floor supports to start.
I'm not quite a lumberjack, but that's OK, I sleep all night and I dream all day; I'll coppice trees, I'll grow my food, and compost poo and pee! With a well and off-grid solar, it's a permies life for me! https://www.youtube.com/watch?v=FshU58nI0Ts
They worship nothing. They say it's because nothing lasts forever. Like this tiny ad: