Poison bait stations are a great way to control the population, but pre-built units tend to be flimsy and expensive. If you want a sturdy bait station that you can reuse repeatedly, your best bet is to make it yourself.
Fortunately, this isn’t a very difficult project. All you need are some basic supplies, a few tools, and a desire to reclaim your territory from the rodent scourge.
You’ll eventually put your bait screw through the cleanout plug, but it can be fragile. Drilling a smaller hole first will prevent the plug from cracking and breaking as you put the screw in.
Take your cleanout plug and drive the four-inch screw through its center, where you drilled the pilot hole. Drive the screw all the way to its cap, leaving the bottom threaded area exposed below.