Exactly How Often Should You Sanitize RV Water Tank?

If you're wondering how often should you sanitize rv water tank to keep your plumbing fresh, the standard rule of thumb is at least once every six months. Even if you don't use your rig every single weekend, that water sitting in the lines and the tank can get a bit funky faster than you'd think. It's one of those maintenance chores that isn't exactly "fun," but skipping it can lead to some pretty gross smells—or worse, a nasty stomach bug that cuts your vacation short. ...

April 24, 2026 · 7 min · Brooke Valleau