An engineer told Washington lawmakers Tuesday that public funding would spur technology to distill cow manure into dry fertilizer and clean water, making polluted runoff from dairies a problem of the past. “Wow,” said one legislator. “Yeah, wow,” said another.The Washington State Dairy Federation arranged back-to-back presentations to the House and Senate agriculture committees by Peter Janicki, CEO of Janicki Bioenergy in Sedro-Woolley, Wash.Janicki has worked with the Bill & Melinda Gates Foundation to convert sewage into drinking water in developing countries. A YouTube video viewed 3.2 million times shows Janicki in 2015 in Africa serving Bill Gates water that five minutes earlier had been human waste.Janicki said that he could use the experience and knowledge that he’s gained to create new technology for distilling cow manure.