I am hooked up city water. Have had fine water pressure for long time. One morning while flushing my rv toilet foot pedal I heard a clunk and water pressure quit. Went back to bed, when I got up again I found there was no pressure in any faucet. Checked outside and no probs. So I took apart and put back together my filter system. Water comes to filter BUT NOT IN NEW FILTER SYSTEM. So do I need another new water filter system or a new toilet faucet valve? Can a faulty toilet faucet valve shut down every faucet in my rv?