I have had some trouble with mine after it has been setting for awhile. Last fall I had to take the little valves for each cylinder and and free them up.. The lime in our water caused them to stick. I used it a few weeks ago and it didn't put out the pressure it should have. I am thinking one of the valves is stuck again. They tell me that there is something you can get to put in the pump when it is being stored to prevent this. I think that is what I need to find.
Good luck
Jim
