Standing water
Water in a crawl space never results in something positive. It will eventually evaporate, rise, and create condensation when it hits cooler surfaces like the HVAC system or cold air ducts. Once condensation occurs, mold can grow and the foundation can suffer from deterioration.
Open vents
Air flow through a home enters from the bottom and escapes through the top of the house. Open vented crawl spaces will suck in hot, humid air, or moisture and rain and invites critters and creepy crawlers to enter your home.
Wet, wet, wet!
This homeowner wanted to use this space as extra storage, but the water and muddy floors created so many problems, that the homeowner couldn't use it to the fullest potential.
CleanSpace
Now with the crawl space completely encapsulated, the homeowner could not only use this space for extra storage, but also can eliminate all muddy floors, kill all mold growth, and can have cleaner air flow through the home.