Well we finally made our new setup so that ants can’t get to our hives again. Here it is:
We built a wood frame, then got some long bolts and PVC caps. We drilled holes into the wood, stuck the bolts into the wood and placed the other end inside the PVC cap. The cap is filled with vegetable oil to create a moat around each leg to trap any ants. So far so good, no ants have made it past the traps.