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converting a two line system to a single line
I got an oil furnace that was only used for a few months. It was a two line system for the oil lines. With an inlet and return line. My oil tank was an single line system. I capped the return line on the oil pump and hooked up my single line into the oil pump. When I started the furnace,it blew out the seal around the shaft of the oil pump.is there something I need to do to convert from a two line to a single line? Any help would be appreciated.