Has anyone used a sonic industrial imager to detect vacuum leaks in mixing systems for dry pasta lines? They use ultra-sensitive microphones to locate leaks in compressed air or vacuum systems. Seems like a good way to eliminate leaks in a vacuum mixer. This imager by Fluke looks like it would work well for this application, but a bit pricey. https://www.fluke.com/en-us/product/...l-imager-ii900