"MM" wrote in message
...
For a couple of years the back fence (8 ft high) has been getting
increasingly wobbly in the wind, as one of the fence posts is loose in
the ground and allows the fence to move in the wind. The post may
either have rotted, or maybe just the movement caused by the wind was
enough to loosen it more and more.

So I'm going to get a new, treated fence post on Saturday (from e.g.
Baytree or Andrews) and will place it near the loose post.

I plan to dig the hole for the new post using my grubber, spade,
garden fork and whatever else that comes in handy. (I also have a
crowbar.)

I won't have much room to work, because, of course, the posts are
tight up against the fence.

Now, putting the new post in: Would it be best to prop it up so that
is properly vertical, then fill around the base with concrete?

Or should I just fill the hole with the earth I removed and tamp it
down?

And how deep should the post be inserted into the ground? These are
very sturdy posts (10cm x 10cm). None of the others shows any sign of
becoming loose; just this one particular one.

MM

Bad idea having any part of the post under ground, it will just rot off
again.
Get one of the metal post holding devices either a spike or the concrete in
ones.
Posts last much longer

This sort of thing:-
http://www.screwfix.com/p/fence-post...ack-of-2/50094

There are various sorts/sizes.