|
*
*
*
The water supply system at Raleighvallen is powered
by the sun. We need to use renewable energy as we are more than 100 miles from a power grid. We need a reliable system for drinking, cooking, bathing, and waste removal. As we are in a national park, the system should have as little impact as possible on the environment.
|
| water intake at upriver tip of island |
*
*
*
*
A
submersible pump pumps the water from the river. The energy comes from the sun
on a single solar panel. The pump is very sensitive and will pump water at low
RPMs when there is a little sun and much faster when there is full sun. The pump is located at the tip of the island. No one lives upriver of our water intake so the water is clean of human contamination. It does sometimes have tree pollen that we can see. The pump is just under the water
when the river level is very low. But when the river rises as it does many times
during the year sometimes as much as 18 feet, the pump is very deep.
|
| The power cable and water line enter the protective tube |
|
| water pipe from river to storage tanks |
The
energy comes from the sun on a single solar panel. A cable takes the DC current to the submersible pump. The panel
is in the open area at the end of the airstrip where is is not shaded by trees.
|
| solar panel on airstrip approach |
*
*
The water is pumped into six tanks at the highest point of the island near the airfield. They range is size from 500 to 800 gallons so we can store about 4000 gallons of water for the main camp.
There are screens over the intake to keep out small fish. There is also screening
where the water flows in that can be cleaned. There is a separate tank to supply the forest bungalows.
Where
|
| solar panel on airstrip approach |
|
