I clean my pipes only when I need to. That's either when they start leaking out resin, yes it does that, or it keeps getting clogged. I use a screen always in my pipe so when I clean it, I don't get any chunks, it's all gooey, oil. Then I just put the oil in a 10g vial, and leave it in my freezer for when I run out of stash. I have no problems smoking resin oil, as long as I don't pay for it, then who cares! Smoke it up!