Magnetic vibrators
Has anyone used those "magnetic vibrators" that look kind of like hockey pucks? They have a battery pack that drives a motor to rotate an asymmetric mass that causes the whole package to vibrate. The vibrator is intended to create ripples in the water in one's decoy spread, to give the appearance of live action.
(1) How do you place these packages? Are they teethered to anchors to be just under the surface or are they intended to float on the surface, the teether simply keeping them in place?
(2) I see mine, bought at BassPro, are marked made in China. How long can I expect these things to last before they break? Any special precautions I should take to prevent water infiltrating the threaded coupling?
(3) Do they work to bring the ducks in?