Due diligence is very important for homeowners who are considering buying a new property. Thorough inspections can help identify problems with a house that may be difficult or impossible to spot during a simple walkthrough. One such problem that can be both tedious and costly to deal with is a leaking underground oil tank. Residential oil tanks should always be removed when they're done being used, but in many cases, the previous homeowner will ignore regulations and leave their old tank in the ground. GPR One Call explains how detecting the tank early with a professional scan can save homeowners time and money.