Good idea?

a pre water filter? like before it goes into the compressor? i mean the best way to get water out ahead of time is temperature, so lower temp air holds onto less water, after the first/second stage the air heats up and can hold onto more, which the cooling line runs help with, and then usually into a separator and/or a desiccant / carbon filter after that before going into your tank/gun, how were you planning on making a pre-h2o filter, with desiccant? that might work u just want a long pathway with it in there so the same air travels passed as much desiccant as possible, so maybe a long / thin pathway filled with desiccant. Any time you are getting contaminants out of the air, its always a good thing, just be sure that nothing other than air travels into the compressor XD