I get no water from any of the faucets when turned on. I had ran out of water when anchored, faucet was left on, so water only came out in spurts. Tried to add water via ski boat shower, but not enough. When tried to turn on faucet, water came out but for not long and soon started to spurt. Filled tank back at dock, but nothing came out at all, not even sputtering. Not sure if burned out pump, clogged filters or something else. Any ideas.