If the water is below the pickup tube, then it picks up the...
If the water is below the pickup tube, then it picks up the phase-separated layer of ethanol, water and gasoline, and the engine will run very poorly, if at all, on that mixture.
If the water is below the pickup tube, then it picks up the phase-separated layer of ethanol, water and gasoline, and the engine will run very poorly, if at all, on that mixture.