If you don't have sewer service to your house, it probably goes into a septic tank, but we have no way of knowing what whichever Yahoo built your house did. It might run right back into the water tank for all we know.
remove the fuel tank and drain the water
Attach a garden hose to the drain spigot and run the hose outside or into a toilet or sink. Open the spigot and drain the tank until the water runs clear. You could have turned off the water heater beforehand so as to reduce the risk of scalding yourself. You should drain the tank as recommended by the manufacturer. If not, lime scale forms and insulates the bottom of the tank and causes the water heater to use more energy because it cannot heat the water efficiently.
Sound like maybe the bladder has burst in the tank and is covering the drain.
it should not be a water in oil tank it is mean engine cracked
Shut the water supply to it and drain it.
Bottom of the air tank. Used to drain the water in the bottom off the tank
The only way to know for sure if a person has water in the gas tank is to drain the tank. Usually a car will sputter and die if there is water in the tank.
It is probably best to drain and flush the tank.
Drain and clean the tank. Replace fuel filter.
You need to drain the tank.
Unless the heater is relatively new, the drain is going to be slow and in some cases not work at all. Rust and sediment collect in the tank and plug the drain.
No, you have to attach a garden hose to the fitting at the bottom of the tank. Often the tank will have sediment built up in it and the water will drain very slowly from this.