I am re-doing my entire basement and it has flooded in the past. I am having a difficult time deciding whether I should install an overhead sewer system or a flood control system. I feel like I am getting a "sell job" from the overhead sewer people and that it might be overkill. The overhead sewer is 2-3 times more expensive than the flood control and requires more maintenance. I am interested in an unbiased expert opinion on this if possible.