Water change ideas

[Dash]

Ok, so I do water changes old school with buckets for my current 75 gallon. Now that I'm going to the bigger tank, I need something easier. I have access to a side door with storm drain about 20 ft from the tank so I can simply have a hose drain into there and would save me a lot of waddling back and forth. What do you all use to pump water out of your tank for water changes?

Thanks!