For new construction, a builder's goal is to construct a home with a basement that will never leak. For existing homes, any of the three methods will guarantee a dry basement. However, there are other factors to consider. For instance, if you have beautiful landscaping, digging outside to install drain tile doesn't sound appealing. Digging up the concrete floor to install interior drain tile loses its allure, too.
Price is also a consideration.
As we learned earlier, the cost varies widely between methods. So you see, many variables affect your decision. This method is using the French Drain, under the floor method. The need to install a sump pump may be optional. You can order a free video showing you how to install a dry floor.