Any fuel tank is vented and they all have a chance of water ingestion. The vent should be high enough to prevent this, though in some cases it can happen. Of course water comes most frequently from fuel storage tanks. With ethanol it builds up in fuel till it separates as the amount of water and ethanol reaches absorption.Last edited by Bass Cat Boats on September 1st, 2013, 11:45 pm, edited 1 time in total.