Hi. New guy here... Not sure how active this forum is, but googling wasn't geting any results so this seemed the next best place. I was just wondering if sump pumps can be used in aquapOnic systems. I read on here that some people do, but I was under the assumption that sump pumps have oil and that fish poop will corrode it away until the oil breaks out into your system and kills all the fish...I am talking about your average pedestal sumpnpumps or like the submersible ones. Thanks in advance for any help.