Here's a quick tip for you, regarding homemade hashbrowns. Okay, maybe not quick, but still a great tip.
Boil or bake whole potatoes, skins on, until just fork tender. Cool in the refrigerator. Once cold, pull the skins off and grate. This eliminates trying to get all of the water out of raw hashbrowns. Cook as you normally would. The hashbrowns will get nice and crispy on the outside using this method.