We're considering buying a house with a driveway that slopes toward the garage. It's a double car garage built in the 60's with a narrow drain the width of half of it that isn't draining, and with the crazy rain Seattle's been getting, the water has gotten all the way into the basement. So far we've been told two different things: install a sump pump (not sure where) or put a trash pump in a bigger drain in the driveway which would drain into the storm drain. I clearly have no idea what is the best option, but do not want to buy a house whose water issue cannot be fixed. Any suggestions?