Home Improvement

I have a similar issue. My line is coming from the 2nd floor and there is a pipe in the wall that drains outside newr ground level. The pipe is probably 12 foot long and takes a few bends.

I used a snake to clear the line a few weeks ago. Not entire sure what exactly is causing the clog but like you said, it's probably just gunk.

Now after I cleared the line I was ready to pull the drain out, but the pipe is like 1/2" so the snake isn't really blocking any condensate from dripping down. So for the last few weeks, I've simply left the snake in there. I'm thinking with the snake in there either maybe the gunk won't grow to clog the line so easily, or since it's already in there, all I have to do is wiggle the snake once a month and dislodge anything that might be starting to grow.

The reason I don't pull it out is because with the angle and bends in the pipe, I had a hell of a time snaking the snake up there. But once it was up there dislodged the gunk took all of 5 seconds.

The snake looks to be regular steel which will rust with water touching it, so I've ordered some stainless steel wire which I will run up the pipe ans just leave it there. It's not the beat solution but I don't have access to the source of the condensate so I have to work backwards from the drain up.