Donít soak the pipe itself with anything! You can use hot water to clean the stem inside and out, you can use alcohol on a pipe cleaner to swab out the shank where the filter goes, the shank is glued in with Elmerís and will come loose if itís wet. Wipe out the bowl with a paper towel after you smoke it while itís still warm, you donít really want any cake to build up in a cob, eventually it will anyway, just scrape it out when it does. If it starts to Ghost or develops a funky taste set out in the sun for a day and the sun will freshen it up.
If I see a stick that made a noob nic sick,I put it on my list as a must try. (UBC03)