I totally get why you want to bring the ducks indoors so why don't you go online and find a large cage or something like it to put them in. and clean up daily.i have a large flight cage in my living room with my birds they can be messy and my home is definatly not dirty or unclean I clean up...
I am very new here, although I keep rosella parrots, cockatiel and 2 budgies I also would love to start up a chicken coop and run in my back garden. I have a large 12ft by 12ft slabbed area which I feel would be safe for the new coop/run as I live in the countryside and although I get a deer...