The locks I used clear nail polish on the newest version this has worked well. The sides bothered me a bit until I recalled the weight of water.
75 gal of water is 626 pounds. The needs to hold that in so any spot weight of 30 pounds should be no problem more if it is spread out. I have never had this kind of mass inside a snake set up I don't think there would be any problem with it on its side. the tank is no where the weight of the water it is designed to hold.
I will definitely try the nail polish. Thanks for the tip...