I use to be able to go into the underwater structures and replace water with sand... then remove the sand and have air. This no longer works and is really upsetting me. How can you have water seeping into air spaces on stairs and fences that won't go away? I am not sure when this started but it is not right. I should be allowed to remove water to make a structure dry. Now I can't. Seems no matter how many times I try to remove the water, it comes back because now stairs and fences and who knows what other object that have air pockets now become endless fountains of water. If your going to change the entire way the game behaves then why not just fix gravity? I don't even recognize the game anymore!