So what u r saying is put them in a bucket of water ??

Concrete all around and at the bottom, so the posts will be resting in
a pool of water all there life.

Its ground level down by 6 ins that always rots, its the water and
microbes that do all the damage.

So you must get rid of
1 - Wood
2 - Water
3 - Microbes

Why not concrete godfathers and then wooden posts, I have these, and
they have lasted 20 years. The wood is as good as 'new' and no sign of
rotting. They have never been re-treated from new.

Is this water level just the normal winter water table and in summer
it dries out.


The secret is to stop the bottoms of the posts absorbing water. Rather
than just plonking the posts into their holes and pouring concrete
around them, you should place a bit of slate or other impervious
material at the bottom of the hole, so that the post is reasonably
encapsulated from the soil.