I common with many others I expect, my garden fence posts have rotted at ground level and snapped.Over the years I have tried various things such as hammering angle iron as close as possible into ground next toposts and screwing good section to those. Also tried meta-posts in a couple of places - work for some months then next high winds and everything is moving around again. The posts were originally set into quite large concrete blocks/balls so my next idea is to remove the posts and panels,clear the tops of the concrete and using a kango hammer open up the square hole in the concrete where the post has rotted away to about twice its' size now.When holes opened up will drop in new posts - will modern pressure treated ones be resistant to rot? Fill in the gap with new concrete ensuring posts are vertical and job done! Will a kango hammer be OK for this kind of job? I presume I can hire one for a weekend. This plan is an alternative to having the whole job done professionally as that could be expensive.