Standing water in your crawlspace is fuel for the growth of mold and mildew. Mold and mildew spores can get inside the house if left unchecked and might cause problems for individuals with asthma or any other breathing difficulties. The constant moisture will also soak into the insulation causing it to eventually fail. Constant water vapor can cause your floor joists and framing to rot resulting in the need for a costly repair.
The Crawlspace Interior Drain system (CID) is installed inside your crawlspace where standing water is a problem. The CID collects all of the water and moves it to a central drain. The CID system is automatic so there is no need for the homeowner to continually climb into the crawlspace in order to maintain or empty water.