1. brendio

    How much roof area can you drain through one 90 mm stormwater pipe?

    I was just wondering if there is a maximum area of roof that you can discharge through a single stormwater pipe out of the curb. Our plumber, instead of piping the downpipe on the front corner of our house out to the curb 10 m or so away, has instead piped the stormwater (uphill slightly) all...