Yes... You get a normal big water bottle from a supermarket... and don't bother with a 'carrier' I tried a few carriers and realised they all make it taste weird and you don't need to store that much water anyway.
Agree I started with the huge bottle of water from the supermarket afer my water container got a hole inthe bottom, tastes much better. Don't get the fancy mineral stuff though goes all horrible in the kettle.
We've given up bothering to take a water container, we only really use it to fill the kettle anyway so we just take that to the tap. Besides, if you have a heavy container, you can't send the children to do it for you, but they can manage to carry a kettle by themselves .