When was the last time you had your backflow prevention device checked? Is your preventer leaking or in need of repairs? Make sure that your potable water is clean and safe with the complete backflow services offered by Backflo Pro’s, Inc. We are a Tumwater, WA company providing yearly device testing, repair and installation to Olympia and surrounding counties. Don’t wait to find out that your drinking water is contaminated: Be proactive by calling us for trustworthy, reliable service!