Series 90 won't drain - coupler broken also - how to fix drain problem?

I know the coupler is my problem according to all your posts ... but it will not drain the water that is in it either. All posts I read said that their problem was coupler but that their machine would drain the water. My motor sounds like it is draining water, but doesn't. Before I start fixing the coupler, i need to know what else I need to buy/do to fix the water draining problem. Help!?!