Here's what I've done for water prep over the course of a lot of years.
As far as actual stored water on sight I've been using these aquatainers for years Amazon.com: Reliance Products Aqua-Tainer 7 Gallon Rigid Water Container
I made the switch after grocery store bought water jugs failed and started to leak. Thankfully the water ran into a sump pit. I don't put much faith in the individual water bottles either. Those aquatainers can usually be found on sale at walmart. Between that and the water heater I think I'm good to get through 99% of whatever would get thrown at us. If I've got a heads up, then yeah one of those "waterbob" bathtub liners would be used.
Here's another way I look at water prepping from a purification standpoint. For the house, if/when a bunch of unprepared sheep show up I've got the berky filter. The berky is more for the bug-in type of problems and that's great until it's time to leave. If we have time to get geared up before we leave, we've got a katadyn base camp and a katadyn hiker pro. They both use the exact same filter, so one in each actual filter and a spare filter all by itself. The base camp is gravity fed, so it really is good for a base camp. Then in each vehicle, I have stainless containers. I'm a big fan of the 32oz. stainless kit's GEN3 Stainless Steel 32 oz. Bottle & Nesting Cup Set - Self Reliance Outfitters? from self reliance outfitters (Pathfinder School). The container is made by kleen canteen, but the nesting cup it comes with is very well thought out and I like to have a complete kit in each vehicle. These kits are on sale often and I think the package is worth it. As far as the Kleen Canteen's go, I've got a 27oz, and a 64oz bottle in addition to the regular 32's from pathfinder. Anytime the family goes anywhere in our light armored multi-personnel and cargo vehicle (minivan) I always have that 64oz wattle bottle tucked away somewhere. The 64oz boils water really well for as big as it is, and the advantage of the 27oz is that it'll fit in a cup holder for daily use.
For me, I've taken the approach with water that I want some on hand, but I also want to make sure I've got redundancy in about every form or fashion to purify it. Sure I can pick up sticks and boil water, I've done that before and would prefer to just grab a blue jug of water and set it next to the sink.
Water is everything, without it all the guns, ammo, and other nonsense we spend our money on is useless. Stack it deep and definitely get some of those powder mixes of whatever you like and don't like just to mix it up every once in a while. Huge moral boost.
Nice Info Teddy12b!!! I'm lucky here, have an artesian well, so even without power, have 20 to 25 psi of potable water boiling up out of the ground. I installed a cast iron well cap with a 1" brass valve outlet. I was going to plumb it into an auto watering system for our garden boxes this year, but the rain just kept coming until 2 weeks ago.
I just started reading into prepping outside of the guns & ammo type. Practical prepping is best prepping.
Also, I'm looking into neighborhood watch groups and militias to try and find a non-extremist group to train, share knowledge with, and help support each other.
Last night I took every fixed blade knife I own and worked on feather sticks. I took every different ferro rod I own and used them with about every knife combination I could think of to see what I liked the best. I've used all my fixed blades, and ferro rods individually and have been happy with them but I've never really tried to compare one to the other so see what was the best combo. I always just worked with whatever combo I had.