Mike: Mine's doing this, because the reservior is filled with water....now frozen. Put in some antifreeze. :-) or the nozzles are plugged. -SCott by BOSTON > From: "Mike Del Tergo" <> > question, there a one way valve or similar in system? I have plenty of > fluid, no breaks, can hear pump going but no fluid out the nozzles, I was > thinking a failed valve? >