Yup. When it dumps (or catches fire!) and ruins carpeting and subflooring and possibly a basement ceiling and you try to file a homeowner's insurance claim you'll find out REAL quick that you have to tell the insurance agent that you have a tank. Cause it won't be covered. It's one of those things most people don't think of. You're also supposed to tell them about two story foyers, dogs, guns, and jewerly or furs valued over 2k. I found that out the hard way when I dropped our Glock from the second story and it hit my chihuahua who was wearing a diamond tiara.