A must have is rubber boots! Never check your traps without em, And try not to brush up against trees,bushes, rocks..etc. cause every time you do you leave scent on em.

Pouring water over your trap might get rid of the scent on your trap but you are still gonna leave scent all around the trap, I like to use one route when I check my traps that way I am not leaving scent all around it.
Good luck!
and remember wear rubber boots!