I have never had any success using water to flush chucks out of there holes. It sounds like a good idea but ....... Best way to get rid of them that I found is some 1 1/2 or larger leg hold traps at the hole entrances
If you want to properly preserve velvet antlers, you will have to inject & brush them with formaldehyde or some of the new less toxic chemicals (4 in 1 solution works great as does Knobloch's antler in velvet tan) as its easier to use however, both will work.
First, using rubber gloves take a razor blade and make small incisions at the tips of all points about 1/8". Next hang the antlers upside down, allowing the blood to drain. Starting at the bases inject the solution into the...