I have nobody to train me and so I'm trying to learn things on my own..... For a cell culture waste flask I know about the bleach and the filter flask connected to a vacuum one side and plugged at the top. How do you connect the tube that's bringing the cells, media, waste, etc. to the plug in the top of the flask? Is there some sort of an adaptor? I've been trying to search for something but it's hard when you don't know what anything's called. I feel really silly asking this but we all have to start somewhere.