I've used these and I don't think they'd do very well without the support of the tub.Janik wrote: ↑Fri Aug 24, 2018 6:47 pmI've been thinking of getting one of those. We have a one bathroom home, so I only need one. But then, I suppose I could fill a couple up in the backyard with the garden hose and try to conceal them. Keep the one in the tub for drinking water, and the two in the yard for washing and other necessities.
There are a bunch of places that have 5 gal Mylar bags with a cardboard box. These were really handy during hurricane Matthew. They aren't terribly expensive and are portable. Fill them and stack them in a corner.
If your water storage is larger than 5 gal units, make sure you have a way to transfer water for use. At 8 lbs/gal, the weight adds up quick.