During heavy rain the water from the drains outside my apartment overflow. The doors have an almost 1 inch gap at the bottom, and the water floods the apartment.
How can I seal that door gap temporarily during the rain to avoid flooding the apartment?
Currently I live in a small town in Argentina. So I do not have access to all materials and do not have any tools. I was thinking about pressing some sort of modeling material into the gap. Today I was using some towels but that holds the water only if I renew them every few minutes. And I don't know what to do when I leave the apartment for a few days and rain starts while I am absent.
The pictures are from 1 of 2 doors.