[quote=DJKoop;233232]Very good reading and full of info, this is the most intersting paragraph
and the deep coarse sediment design for which there is currently no accepted name had the lowest overall mortality (Fig. 10). We did not test bare bottom tanks, but the data clearly suggest that the shallower the sediment, the higher the mortality rate, and you can't get much shallower than a bare bottom tank!
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I see it diferently ie, coarse sand will only trap more CR*P and kreate more problems
JM2C worth
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