Another clue that we might see a flood...

A few days ago I mentioned in another thread I started that I think Meg is going to get the residents of Jarden to the camp (I think she'll "return" the girls to lure them there) where she'll unleash a flood. I said I remembered a water tower in one of the episodes and I think she'll blow that up to cause the flood. (Water towers can hold between 1-5 million gallons of water and if it's near enough to the camp, could do some serious damage, esp. if people are just out in the open).

WELL, I'm making a new thread (annoying, I know...I apologize) because a friend of mine reminded me that in the episode when we first see Michael ride his bike out to his grandfather's, he passes by the water tower where cops are arresting some people. I'm wondering if those were GR members either scoping the tower out or even planting explosives??

Also, it seems like everyone in the promo is looking up and we can see the bridge behind Erika. She is looking up which clearly means she is not looking up at the bridge from below (with the girls hanging there). What the heck can be up in the sky? Maybe a tall water tower? :)

I'm stuck on the idea of a flood because of all the references to it this season, but I know none of it may point to what's going to happen in the finale. I know they'll blow our minds with something we have not thought of. I just speculate to calm my nerves while I wait for Sunday! :)