Hello!  I'm looking for advice on how to install a dry camp water tank (it's a water tank that doubles as a saddle rack, for trailers that have the old style tack under manger configuration).  My trailer is an older Danish trailer (kinda like a Brenderup but made of light sheet metal instead of plastic) so I'm not sure how to secure it in the tack compartment so it doesn't slide around when I drive, I can't poke holes in the water tank, so how do I do this???

Thanks- I'm a total newb to this trailering thing!

Honestly - just fill it with water - it will not go anywhere - If you brake hard enough to move it then the least of your worries will be the water tank. If you are still concerned about sliding just get some rubber matter to put under it - it will not slide on the matting.

I've just have light tuberware containers in my dreesing room on the floor and even they do move move around on the slippery floor.