My house is about 50 years old. All downspouts from the gutters go into underground piping and exit "downhill" from a four-inch black plastic pipe into a drainage ditch.
Near the end of last winter, noticed that water was pooling up from "underground" near one of the downspouts.
Being lazy and clueless, ignored the problem. But as rain season approaches, figured I better fix this -- we get about five feet of rain per year.
I will dig out and see what is going on (I suspect a hole underground). I will patch if I can, but if I need to run a new line, any advice?
I was planning 3-4-inch plastic pipe running in a shallow trench (not much freeze problem here) downhill to the ditch.
However, when I installed a french drain behind a storage shed a few years ago, all the manuals were very specific about "drop per inch" -- ie -- the pipe should gradually slope away.
That would be difficult here, as I would have to run the line about
200 yards at a diagonal to do this from my house on a hill.If I run the drain pipe straight downhill it will be about a 30-yard run, but quite steep. Is that a problem?