Basement Waterproofing - Digging to install the drain
In many cases, an inside footing drain works better than an outside French drain, as it lasts longer and gets clogged less or even never. Usually we install our internal footing drain on the footing. However, in this case, the client's footing ran parallel to the slab, which is a construction method that is not completely recommended. Usually a slab should run on top of the footing, however in some cases such as when an existing crawlspace is transformed into a basement, the footing is a bit high and instead of digging deeper contractors tend to pour the slab adjacent to the footing.