A few ways to move water...

[WaterWitchin]

Nice DC! And you are plenty capable of moving a bucket full of water, so that's a big win for ya. I have one suggestion, but it may not be a big problem for you. My LECA floats a LOT, and I like it that way. I know you're using a different brand because you don't like floaty floaty. But if you still have issues at times, I use these little strainers over top of the hole in the tray.

Amazon.com

Keeps them from accidentally clogging and spilling water over the side (which for me would be a wood floor). So just for the event you have that issue, or do something similar inside the house.