I have 2 central AC units in my 2 story house. From what I was told by the last AC repair man that visited, each of my ac units in the crawl space/attic has a main drain line that drains directly into one the sink drains in 2 of my upstairs bathrooms. If those drain lines get clogged, there is a secondary drain line that exits the house through the second story eaves. So I have 2 small pipes sticking out my second story eaves. Recently one of them starter to drip water, which I guess means that one of my main drain lines is clogged. I've already made an appointment to have the that taken care of. My question involves the secondary drain pipes. They only stick out about 1 inch, so when the dirty A/C water does drain/drip from them it "dribbles" all down the side of my house, leaving dirty/rusty stains. What is the best way to remedy this problem? A small piece of hose? Extend the drain pipe?