Water dripping out of pipe. ??

[Fishing-addict]

I lined an existing chimney with brand new stove pipe. The only thing that wasn't new was the 90. Shortly after lighting a small fire in the stove water started slowly dripping out of one of the joints in the flexible elbow. It's a little bit black, but I think it's just from the tiny bit of black that was left in the elbow after a good cleaning. It's really like a brown color. What's causing this? My only guess is I don't have my pipe hot enough and it's condensating and then running back down. What do y'all think?

 

[bholler]

I lined an existing chimney with brand new stove pipe. The only thing that wasn't new was the 90. Shortly after lighting a small fire in the stove water started slowly dripping out of one of the joints in the flexible elbow. It's a little bit black, but I think it's just from the tiny bit of black that was left in the elbow after a good cleaning. It's really like a brown color. What's causing this? My only guess is I don't have my pipe hot enough and it's condensating and then running back down. What do y'all think?

Well you shouldnt have an.elbow at tbe bottom you should have a tee. When you say stove pipe i hope you mean a stainless liner.

 

[Mark8]

When you say you reused the 90, did you happen to clean the 90 with water, like hosed it off, if you did that there would be water in the joints of the 90 and now it's boiling out. Just a guess.