Water bug ecounter

When the water bottle is emptied nothing happens because there is enough water to prevent the slime from off gassing. The screenshot shows it at 3019.1 grams, but that will quickly diminish on its own flowing into the tile of water to the right.

The slime starts to off gas as soon as the water drops below 1.8 kg in that specific tile and naturally displaces the remaining water. Any deletion that happens will be minimal and limited to the water and the polluted oxygen that is generated.

This is a completely normal phenomenon.

 

If you want to preserve the liquid lock you'll need to either remove any and all debris that may off gas or provide enough water to actually prevent it from happening altogether.

Hope this helps.