HELP No water psi after de winterizing 2006 cross county

may not be relevant but if you have a water filter system, winterizing can mean taking out the filter and putting a cap over the filter area so that you do not have to fill the filter with antifreeze. take out the cap if it is there and try that. if there is a filter left in, the antifreeze can affect the way it works and that could also be an issue. make sure all valves are closed especially the outside and drain valves. good luck