I am having trouble with my Skywriter. I have only put one tank through it and now it wont pump. I have taken the check valve off and the crap trap as well and just ran regular lines trying to pump water through it and nothing. I have also filled the tank with water and put the cap on the fill then blown in the vent to try and prime the pump. There is water coming in and going out the pump with no bubbles and still no pumping. It comes on and sounds just like it did when it was pumping. I am at a loss and am really hoping that there is something simple that someone can point out to me that will make this thing work again. If not i will be calling Sullivan in the morning. Any ideas

Flyboy76