I'm getting my driveway block paved. The driveway slopes down towards the house, so I'm planning on installing a drain at the bottom of it. This wickes product seems to be what I need. Just wondering how wide the drain should be? The driveway will be 17 foot. Would two meters of drainage be enough? Or should I go for 3 meters? And should it be in the middle of the drive or it would be ok towards the right or left hand side of the driveway side walls?
http://www.wickes.co.uk/Drive-And-Patio-Drain-Gully/invt/240733
http://www.wickes.co.uk/Drive-And-Patio-Drain-Gully/invt/240733