Quote from: ChrisJC on March 11, 2021, 02:33:41 pmDoes one need permission to pour bright plastic balls into a watercourse?not entirely sure it's environmentally the best thing to be doing, with already far too many micro-plastics in the rivers/seas.
Does one need permission to pour bright plastic balls into a watercourse?
It says they're 'rubber'? I'm guessing that means some sort of synthi-rubber, at that price.
You would only want a constant buoyancy in a vadose system, for phreatic you would want it to be stay in the flow rather than rise to the roof.
by constant buoyancy I mean constant neutral buoyancy i.e. neither positively or negatively buoyant, but just hovers in place in still water, but follows the flows/currents
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