We want to convert the garage into the living room. Our house has a crawl space under it. But the garage is a slab with cinder blocks around it. Water comes in through the garage door when it rains enough. Not sure if we just block the door entrance and fill it in with concrete if it will be enough to keep the water out? We will also be placing a man door there. But it will be on top of the cinder blocks. Or is there another way we should do this? We are also thinking about putting a drain system in front of where the door was to help.