Hey everyone. Tried my oil change this weekend with no luck. Used exact same setup as last year: heated oil up by running off the water hose. I had already snaked the oil pan hose out the transom plug.....shut it down and went to hook up small extractor pump and nothing. No oil drips from gravity drain, nothing sucked up by the pump. The pump could be better, but it did work last year. I have a miti-vac style on order from amazon now. Is it possible to get an air bubble in the hose somewhere that is basically preventing pumping? I know plenty of oil is in there because oil pressure is OK when running the engine. Thanks.