Cleaned stove and dura vent pipe yesterday now the pipe is leaking around the clean out. I been fighting this leaking pipe since I bought the stove in 06. Going to get a roll of stove tape tomorrow only then it will leak out the bottom of the clean out. I can silicone the clean out cap then won't be able to remove it later. Loosing battle I fear going to pull the stove out this summer and see if I can't stop the leak myself installing company has had no luck.