Sump pit
There should have been pumps installed at the time that the French drainage system was installed. However, for reasons unknown to us or the new homeowner, the pumps were missing. Needless to say, allowing standing pools of water to form in your basement in a sump pit or anywhere else is a problem. Standing water is a major attractant for insects and rodents. Some insects, like mosquitos, seek out standing water to deposit their eggs. Also, stagnant water can cause mold growth and stale musty odors throughout the home. In short, without exaggeration, standing water can turn your basement or crawl space into a smelly swamp - the only thing missing would be alligators!