1,100 lb bag question

[you da man]

I totally disagree with this idea, and you are kidding yourself if you think this is true. JMO nothing personal. Yes it would if the bag actually had some substance to it like a rigid container but it does NOT! The pressure of water is directly proportional to the height or column of water. no matter how you place the bag is totally irrelevant to the pressure exerted on your engine divider wall. This is plain simple physics! The greatest pressure will be at the bottom hinges and a reinforcing metal angle piece should be added between the 2 hinges as well as longer screws....at some point you may even want to thru drill your hinge screws thru your engine walls and thru bolt them as again this is where the most pressure will be.

When my boat is leaned over, the sac is not sitting level. You can try it with a loosely filled water balloon. Fill it, sit it on a flat surface and tilt that surface 10-15 degrees and see how the balloon deforms.