Without septic tank risers, locating your septic system can be project. The traditional way of locating your septic tank would be using a probe or a shovel. Not only is this a lot more work, but it can create complications if not done correctly.
A safer and more exact alternative would be using a metal detector or a electronic drain pipe sensor. A special plumbing snake would be fed into the home’s main drain line through a convenient location until it hits the septic tank or an obstruction.