I am purchasing a house that was built in 2005 and there has never been a water problem in the basement.The inspector recommended a pump due to some water in the pit at the time of inspection. Is installing a pump a neccessary thing for such a new house that has never had a water issue? Or could we wait until a possible issue occurs or until we finish the basement which might be done within 3-5 years? An additional factor is that we will be having a radon mitigation unit installed and I would assume they would seal the pit.