• Good work Tom, been reading about your caustic soda exploits with interest, getting rid of the alu residue is one things that puts me off this method. I've got three frames with seized posts, but think I'll try the hacksaw method first and if the cutting is too tedious I'll break out the chemicals.

    It seems the tricky part of cutting with a hacksaw is being able to cut evenly all the way down to the bottom of the post. My plan is to get a length of wooden dowling and fix a hacksaw blade into it, that way I'll be able to get all the way down the posts and apply even pressure. Will post pics when I get round to giving this a go...

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