At home, laundry is about removing grease, grass, and coffee stains without damaging the fabric of the clothing. Energy and water efficiency only matter in a secondary sense. Rinse water is plentiful, and the only water quality consideration is that it is sufficiently soft to avoid interference with the detergent and calcium build-up in the clothes.
As ventilation experts explore ways to make indoor spaces safer during the COVID-19 pandemic, we became curious about ventilation in our boats. As it turns out, where we install our exhaust or intake vents (portlight, hatch, or cowl) is just as important as what type of vent we use. Just as we can use the suction on the leeward side of a sail to pull the boat forward, we can use pressure differentials in the air surrounding the cabin to maximize the ventilation. Understanding the pressure differentials created by the flow of air over our boat’s deck is vital to the success of any passive ventilation scheme.