It's been a long time since I've been here. I have a C215 96L1270 with a 3304. Last year I was using it and then the engine started dying out on me, I'd drop the load and it would rev up again or traveling I would have to stop to keep it from dying so I thought it had dirty fuel filters. I put new ones on and it worked fine. I put 3 or 4 hours on it and when i was done I parked it. One day in the winter I was looking the machine over and noticed the water separator was empty, being it is a new one I thought it might not be sealing properly so a couple of days ago I remove it and put some sealer on the rubber grommets put it back and use the priming pump to fill it back up, It took a lot of pumping maybe 100 strokes. The machine started right back up. I let it run for a while then turned it off. Today I go look at it and it is 3/4 down so I give it 40-50 pumps on the primer pump to fill it back up then 20 minutes later it is half empty so I came here to ask for help. Oh tank is half to 3/4 full if that mean anything.