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Message: <blockquote data-quote="Lakenut" data-source="post: 3998975" data-attributes="member: 30258"><p>Btw…. There is a difference between a “French” drain and underground drainage. Frenchies use a perforated pipe surrounded by gravel. This wouldn’t be the correct below ground drain for your situation. You would use a non perforated pipe, no gravel. You would use several surface drain collection boxes to collect the surface water. You also will need several inches of fall between the top of the collection  boxes and your outlet.  There isn’t anything complicated about installing a below ground drain but there are several issues to be aware of. You will need to be aware of everything underground including utilities and irrigation pipes and wires. I would also tie in your gutter downspouts while you are at it. The black corrugated ADS pipe is the easiest to work with but solid pvc drain pipe is better in the long run. With the amount of water you have I would go with a 6” drain line.</p></blockquote><p></p>