Step 9. Mix and pour some concrete
Start mixing and pouring.
You can fill up to the top of the seat part as shown in the picture.
You can make mix your own concrete using cement, sand and gravel. For information about how to mix concrete
Alternatively you can buy bags of cement, gravel and sand (or similar type of aggregate) already mixed, which only require the addition of water to make concrete. I used seven 80 lb bags. You will use more or less depending on the size of the footing hole.
Vibrate the form as you go to ensure a smooth finish and that there will be no air pockets in the concrete.
This can be done by continually tapping around the form with a hammer.
You will see the concrete settle as you vibrate.