Summer start up blues: Boat stored all winter in high freezing conditions. Was anti-freezed. Will pump "fluids" and other nasty stuff if I pour a glass of water
into the bowl when it's in "dry" mode, but when I turn the valve to accept water
from outside, it sucks on the upward stroke OK, but then it feels like I'm pumping compressed air and normal hand pressure can't make it do any of the downward stroke. Inlet valve is open. New condition to me ! Any ideas as to what might be the problem ? Thanks.