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Advantages and disadvantages of each type of basement drainage system: Interior French Drain System: Advantages: Effectively collects water from the basement floor and foundation walls, preventing water buildup and potential flooding. It can be installed in existing basements without extensive excavation. The perforated pipe and gravel design allow for efficient water collection and transport to a sump pump for removal. Disadvantages: Requires a sump pump to remove collected water, which may need occasional maintenance. Does not address water seepage through the foundation walls directly. Exterior French Drain System: Advantages: Collects and diverts water away from the foundation walls before it [...]