Does the watermaker need a separate thru-hull?
No. Many cruisers prefer to tee into the engine-cooling intake instead of adding another thru hull. This is not a problem because our units do not use enough water to ‘rob’ the engine of water. This is true of units that make less than five gallons an hour. Only our 160E exceeds this capacity. Whatever input you choose, be sure that it remains underwater at all times to prevent air from entering the system. This is especially important in heeling sailboats. Please note that many head intakes are relatively far up the side of the hull, so this is a poor choice for a watermaker intake.
