A device used to manage the movement of surface water into and out of an attenuation facility. Drainage which runs through pipework installed to a fall, and not therefore under pressure. Water that is below the surface of ground in the saturation zone. Will not allow water to pass though it.
Examine your crawlspace from both the inside and outside and find all holes and entrances into the space. If your crawlspace is reasonably dark, going inside, turning off the light and looking for sunlight coming in from outside is a great way to do this. Seal the holes with expanding foam or caulk.
4. Keep the space dry with a dehumidifier. Now that you've taken care of the water entry problem and any issues of mold and pests, you can start to dry out the space. The fastest and easiest way to do this is with a crawl space dehumidifier. First, you'll need to figure out what size dehumidifier is best for the space.