Is a 5-gallon bucket suitable to mix a 50 lb bag of SLC? The mixing instructions require 5 quarts per 50 lb bag of SLC. I'm afraid that a 5-gallon bucket may be insufficient. If insufficient, what is the min. volume container to practically mix in these amounts? Thanks.

Some tips...if you haven't seen it already. The video is a bit long winded (the first one I did), but I think it gets the point across

http://www.youtube.com/watch?v=RhwbIf8haP4

I'm a complete newbie, and mixed an entire 50 lb bag of Ardex GS4 with 4 quarts of water in a 5 gallon bucket. I added all 4 qts to the bucket first, and had a helper pour the bag in slowly. While she poured the bag in, I started the mixing drill at a low rpm to avoid splashing. I held on to the bottom of the bucket with my feet. I'm 6'4", and the mixing drill was not very long. My back was hurting from handling the drill in a slouched position, mixing for a few minutes. It was kinda fun actually, but wear a mask and goggles.