Just wondering who uses them. Are they safe to use? I am just trying to figure out basic info. Now that I have a house and a fish room I am looking to gradually build myself a nice little sump room. I only have my 55 at the moment, but I intend on expanding to a 55, 92, and something big. 170-220 range at some point. I was wondering what pumps people use to push water up that kind of head pressure. I have heard of people using pool pumps, just want to know if its safe, what to look for etc. I would love to get a good size pump i could run on a VFD so I can dial back my power usage. As I get closer to actually doing this I would love to see some of your basement sump room setups in person to gather ideas.