@Kiwi Pete i think it was this thread - anyway, somewhere you asked me what would come up if it rained ? I had a water leak here, this is the only thing that came up Noogoora Burrs - introduced from South America in the late 1800's ( in hay / forage / seed imported then due to a massive drought, surprise suprise !! Hence our very tight quarantine / bio security laws now ) I had to get this trough operational again, even though I don't have any stock, just so the Roos & birds & insects can have a drink, as there is no surface water anywhere . . .