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Thread: Drinking Water from Fog-Drip--- the Latest Fad on the West Coast

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  1. #1
    Join Date
    Nov 2007

    Default Drinking Water from Fog-Drip--- the Latest Fad on the West Coast

    Here is the latest fad from the eco-nuts on the West Coast: gathering potable water from fog-drip. Without some research, the idea would seem to make sense since the West Coast has plenty of dense fog. Also, some trees such as Monterey pines and coastal redwood trees naturally augment their water supply by collecting fog-drip on their needles or leaves and letting it rain-down onto the soil below.

    But the rubber meets the road where fog-drip has been harvested: at Punta Baja, near Rosario, Baja Cal. Norte, Mexico, some 250 miles south of San Diego, California. And at Punta Baja, a seaside village of 60 people, 30 fog collectors each 100 square feet in area were installed by the University of Baja California at Ensenada.

    By actually doing the harvesting, the University of BCN found that 10 gallons of fresh water per capita in the village could be obtained daily on average from fog-drip using this system of 30 fog collectors.

    An average person per day needs at minimum 100 gallons of water for household use. So unless I am missing something important here, 10 g/d would be just enough water to flush one toilet (using flow-restriction design) three times per day. Or 10g/day might be just enough to cook one meal and provide drinking drinking water on the table with the food and provide water to wash the dishes after the meal.

    Or, 10g/d fresh water might suffice for drinking water, making coffee, and brushing one's teeth, but a household might have to use a secondary water source ( recycled sewage or raw seawater ) for all other domestic uses such as flushing toilets, showers, washing clothes, etc.

    Imagine the cost of building homes with dual plumbing: one plumbing system for fog-drip water for drinking, the other for dispensing seawater or sewage for all other household uses. And then compare those plumbing costs to the disposable incomes of rural Baja California residents.

    But as with solar power and wind power schemes, don't confuse the eco-nuts with the economic facts of engineering their ideas. So, fog-drip is now the latest fad on the West Coast with the Greens.

    Meanwhile, nuclear power which could provide bountiful energy to de-salinate seawater at the cost of 50cents per cubic metre is over-looked. The nuclear power solution to the water shortage on the desert West Coast is still, "off the table" . :rolleyes:
    Last edited by Starving Steve; 12-21-07 at 07:22 PM.



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