How made fountain wall?
by
Francisco
Suggested Project Book
I would decide how far down the sides and ends you want the comforter to hang down and go from there. Many comforters don't give much coverage to the sides and ends and if you have a thick mattress it will go even less over the sides. I went from an old queen mattress to a new one that is almost twice as thick and the king comforter that was so-so on the old queen hardly covers the mattress and box spring on the double because of the height difference.
If you are asking how to make an exterior wall fountain look here:
https://www.doityourself.com/stry/how-to-make-a-wall-fountain
A blogging friend of mine made an awesome outdoor water wall. Here's the tutorial link.
https://www.interiorfrugalista.com/2014/08/diy-patio-water-wall.html