1 they could use non-corrosive parts. 2 I don't see what pumping water from one side to the other has to do with cross contamination of species. The water could be filtered through the pipes. But I know what you are saying.
1 they could use non-corrosive parts. 2 I don't see what pumping water from one side to the other has to do with cross contamination of species. The water could be filtered through the pipes. But I know what you are saying.
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