Our home is prone to occasional flooding during the rainy season. There was only one time in 26 years where our home was devastated by the flood reaching up to half of the 2nd floor. This destroyed so much of our things such as our car, electronics, furniture, documents, and etc. Other than that, there are a few instances of flooding that reaches only a few inches into the home but it was also rare.
I am considering buying quite an expensive monitor, CPU, and printer but I am thinking that rainy season just arrived and I am afraid they will just get destroyed. The only way I can be reassured I can buy these if I can find some kind of storage solution that if I place my appliances/electronics in them, there is an almost 100% certainty that water will not be able to enter and damage the objects in case it gets submerged (assume the entire thing is submerged for hours to days).
I have looked for flood bags, but all I can see everywhere are either sandbags or sandbag-like fibres that absorb water and create a barrier to prevent water from entering, but these are surely only for mild flooding. If it is on the scale where it will reach the items of value, it will be a massive flood thus a watertight storage solution is the answer.
I have been looking but I cannot seem to find any good solution. I am thinking of something like a garbage bag, but I know garbage bags are not the best choice as they are not watertight despite having several layers of them