I have wanted to give this a try for some time. Finally got around to putting it together.
This should work good for anybody that can't out to the rig real often to empty and reset those darn traps, plus you won't have to put poison out anymore.
All there is here is a 5gal. bucket, hole thru both sides of the top with a piece of conduit running thru it, with a plastic water bottle smeared with peanut butter on the conduit, (I will replace that with a piece of PVC just big enough to go over the conduit and spin freely. There is a small board hooked on the edge of the bucket for the little critters to get up there. Then when they get out on the bottle/PVC, it will spin and down they go into a few inches of RV antifreeze (They can't get out) in fact I don't think they swim to good either. The RV antifreeze will keep it working all year around.