At a recent Anacortes Home Inspection, I discovered an oddly situated exterior hose bib located directly above a crawl space foundation vent. Running the bib, as you can see in the video below, completely filled the vent well which eventually would run water into the crawl space. Evidence of historic water intrusion was noted in the crawl space, this being the likely historic contributing factor. Standing water in crawl spaces puts the building at risk of structural settlement, moisture related issues and WDO (wood destroying insect) activity and damage. If you see standing water in your crawl space, deal with it sooner than later.