So going back to the drawing board after the mess that was the reverse-flexiVAT system I came to the conclusion that maybe I should go for an established system for top-down. So this is my design of the wiper system made especially for my tank (it is an actual custom made fish tank). It is removable, easy to use and clean, increases print speed a lot and solves 90% of bulging. I have not properly tested it, wish me luck