I have 2 large 25 litre plastic water containers available. Perfect for camping or gardening use.
I buy de ionised water in bulk for my continuous steam iron and it is delivered in these containers. Nothing else has been in the container - just the original de ionised water. Once it’s empty the screw cap goes on and it’s stored or given away.
These are sturdy and good quality containers - have lots of uses and too good to throw away.