Hi Richard,
I will be really interested to see your pictures. It will convince any doubters about how quickly it breaks up. You can understand any sceptics though, since it looks pretty indestructible while sitting on the beach!
Rinsing the salt off was never an issue in the West of Scotland. I will let you work out why! But is should be rinsed one way or another before it goes on the garden.
Living in London I am reduced to using processed seaweed products, but as you will see from the links, papers on how it works as a nematicide looks really interesting in improving crops through improving soil.
BR
Neil
