**andygates**and

**congochris**

I wanted to know what the optimum amount of water you should put in a container to ensure you have the maximum amount of water without having the container burst if the water freezes.

I've taken 6 Deer Park water bottles and filled them with different levels of water.

Another view, after removing their labels

The bottle with no markings (at the far right) is the water level as it came, which is 550mL, even though the bottle says 0.5L

Bottle 1 holds 500mL, approx 91% of the total

Bottle 2 holds 450mL, approx 82% of the total

Bottle 3 holds 400mL, approx 73% of the total

Bottle 4 holds 350mL, approx 64% of the total

Bottle 5 holds 300mL, approx 55% of the total

The procedure is to freeze the bottles solid, then thaw them out. The bottles will then be examined for leaks or failures. Hopefully by determining the level at which the bottle is not ruptured by the freezing process, the optimal amount of water to put in a container can be determined.

After that, the next step will be to see if the figures derived from these bottles can be extrapolated onto larger containers.

I tried to leave the bottles outside overnight, but even though the forecast calls for below freezing temps, they have not begun to freeze after several hours, so I have placed the bottles in the freezer.

The rest of the test is contingent on the bottles freezing and all that, so I will update soon.