We tried turning turning on our water system in our 2018 Hawk (shurflo pump, hot H20 heater) after winterizing it last fall. The tank filled up, the pump will run, the small filter is full of water, and I heard air released when I opened the hot and cold faucet. BUT no water comes out and I have a small leak below the shutoff valve where it is labeled water heater. I am trying to fix the small leak but wonder why I am not getting any water to the faucets. HELP