LBD 76 Posted September 10 Share Posted September 10 Guess the stuff when free from the soil it would have an SG about 1 and would remain in suspension, you could gravity separate out the higher density sand stones shells etc, then run all the rest over a filter belt say with a 2mm aperture .... that should work. Quote Link to post Share on other sites
harrytom 618 Posted September 11 Share Posted September 11 Talking to NIWA divers downtown who were carrying out some sort of study.the are more concerned with fan worm removal and will heading north shortly.BOI to do more eradication.Asked about dredging the calpulas weed and verdict was waste of time.But yes more likely we have moved it from barrier to others places unknowingly as not report to til 2 yrs ago. Quote Link to post Share on other sites
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