I was actually going to recommend getting the rollers. I fill mine with a short section of hose by my bathroom, mix in my salt & Prime (circulate for a while) and then roll it over to the aquarium. But I haven't considered weight limits so I guess I'm taking a few unnecessary risks.
I do think I've had some calcium buildup on the bottom. I often don't use the last few inches of water and I just dump it outside (roll it to the door and dump) before starting all over.
