yeah its good for that but I'm talking about it leaching into the ground through my posts, into the soil and then into the veg and grass, just dont like that thought.
ANyway after much searching I found a product which is environmentally friendly, its called green leaf lifetime treatment, I think it originates from Canada, water based and non toxic, one application treats the wood for life. It does something to the structure of the wood to stop it ever rotting, genius.