Georgia Septic Installer Practice Test

If the removable cover of a septic tank is installed below grade, what size rebar do your handles need to be?

1. #2 rebar

2. #3 rebar

3. #4 rebar

4. #5 rebar

The correct answer is: #3 rebar

Using #3 rebar for the handles of a removable cover installed below grade ensures adequate strength and durability. In septic systems, it is critical that any removable components, such as tank covers, can withstand the forces from soil and cover loads, especially when they are buried. #3 rebar provides sufficient tensile strength and flexibility for this application, allowing for easy handling while maintaining structural integrity. The choice of rebar size is important to meet both safety standards and functionality. Handles that are too small may not be able to handle the stresses of removal, while larger rebar sizes could be unnecessarily cumbersome or difficult to manage. Therefore, #3 rebar strikes a good balance between strength and usability for septic tank covers installed below grade.