My sand dry lots with rubber mats in the corner, black poly or rubbermaid water troughs connected to corner post as feeders. I tie hay nets inside the trough. The rubbermaid troughs have holes cut in the bottom and are secured with a chain around the post at the top, down the inside of the trough, then out the hole and connected to post. Black poly troughs are secured similarly but with twine through the drain plug.
Certain horses love to push the troughs so they twirl around the post out of reach, which means they haynet goes with them. Fence is tape and higher than the trough, so no interference there. I put tired putting steel stakes in the ground outside the fence at the base of the rubbermaid, but the stakes moved with the pressure. I’m trying to figure out the best way to keep these feeders in place. I’m not opposed to drilling more holes in troughs. Has anyone done something like this or have ideas how I can secure them?