I am building a 24" high planter made from cinder block walls: Sketch below.
Though it looks like a normal planter, water is pumped in from a pond, and instead of dirt, various layers of increasingly smaller and smaller rocks are filled in. As such, the walls probably need to support a lot more weight than typical of a planter, as there is rocks and water, not just dirt.
For increased strength, I can run something strong from one wall to the other, since I believe pressure will be equal on both walls. The cinder blocks have holes, which could make a convenient attaching point, but their isn't much space between the bricks, insufficient to run chain. Additionally, I need something that won't rust and deteriorate much over time.
Is there some kind of product I can use for tying the walls good so they support the heavy weight of the rocks and water?
_____________________________ / /| / @ <--flowers / | <--brick wall / \|/ / | / | / | / / / /___________________________ / / | | / | | / | | / | | / |___________________________|/ ____ ____ | | | | | |oooooooooooooooooooooooooooo| | (slide view) | | | | | | (rocks + water) | | <-- three 8"x8"x16" cinder blocks tall | | | | | | | | _______| |____________________________| |_______<-- ground level