After putting the 3 bags worth of concrete into the hole and ensuring it nicely surrounded the post i used a small garden shovel to slope the concrete away from the fence post.
Replace rotted fence post in concrete.
Saw along each pencil line.
Make the hole large.
This way the post will not be sitting in cement to rot off again.
Mark cut lines onto post with a layout square.
Make sure your hole is.
How to replace fence post anchors in concrete or fence post spikes without concrete.
If you have an old wood fence post that is completely rotted off and you are able to remove it along with all debris you could reuse the cement ball for a new post.
Set the depth of cut on a circular saw to cut through the posts but not into the rails.
Position the lines above and below each horizontal rail.
Using a small shovel to slope the concrete away from the post.
Knock out the wood between the cuts with a hammer.
You can apply the solution by brushing it onto the post or dipping the post into a tub filled with the liquid.
Use a sledgehammer to break up the concrete around the old post.
Break up the concrete.
Remove the old post.
Some have successfully used fence post anchors.
The idea it to make a little ramp so water flows away from the wooden post on all 4 sides.