Hmm. I have two sets of tall, double-windows in one room, and thinking I could probably find an at m aerator/pump/tubing by yard sale or thrifting. I may not be able to pull it all together in time this winter, because I’m rural without my own transportation atm, but I bet I’m be able to find it before next winter. That’s really a good idea with the foil and enough detailed instructions to get it done! Thanks so much for taking the time to type all that out for me, friend. Wishing you abundance in your endeavors, and thank you again.