lauranatsci.ppt

7/27/2019 lauranatsci.ppt

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Water Conservation:

The Facts and What you Can do

About it.


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1955-1995


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Water Facts

Bathroom claimsnearly 75% of wateruse

In 1990, the averageperson used 183gallons of water perday.

The water use is about50% higher in the westthan the east.


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Seattle Water Use

The Months with theleast precipitation arethe months we usethe most water.

In the summer, wateruse increasesbetween 50-250%

This increase ismostly attributable tothe watering of lawns.


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The Errsons


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Rainwater Harvesting for

Consumption Cost less than $1500

to build

Softer Water: 5mg/gal

of dissolved mineralsas compared to 500in city water.

Cut water use by 95%

Many use similarsystem for laundryand toilets.


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Composting to Create Hot

Water Temperatures of 90-130

degrees Fahrenheitprovided.

Enough hot water to take3 quick showers providedat any given time. (9gallons)

Made of plastics

sheeting, straw, pvcwaterline, and compost


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How Compost Hot Water

Works Use tree branches, which can be gotten

for free from loggers, which are Carbonrich.

Vegetables and manure and urine whichare nitrogen rich

Together these accelerate thedecomposition process, producing heat.

Because the water piping is buried in this itabsorbs the heat.


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Sawdust Toilet

When used, add layerof sawdust to absorbodors.

When full, empty intocompost pile

Some save urineseparately. Can be

diluted and used onplants for its nitrogenrichness.


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Another Somewhat

Extreme Idea


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Waste Water Wetlands

The system willfunction in thedormant as well asthe summer season.

The oxidizingpurification occurs inthe root activity notthe nutrient removal

1 sq. ft for each gallonof daily flow.

Needs:

A 2 cell septic tank(removes sludge)

Then a wetlandconstructed of 12-18inches of gravel withnative plants for the

water to slowly passthrough


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H2O House

www.h2ouse.org


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Bath


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Toilet Tidbits

A family of 4 uses 881gallons of water perweek just to flushtheir toilet.

If everyone in the USflushed one less timea day, we could saveenough water tomake a square milelake that is four feetdeep everyday.


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Saving water

Add bricks or two liter bottles filled withwater to your tank to reduce gpf.

Add food coloring to the tank, wait 30mins. If the bowl is colored then you havea tank leak.

Running water while shaving or brushingteeth, wastes more water than what oneperson needs for an entire week.


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Shower improvements

Take shorter showers

Replace shower headwith water savers thatuse 2.5 gpm or less

Do not take baths. Thetypical bath uses over 50gallons of water.

Consider collectingexcess water for use onhouse plants.


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Kitchen Facts

Typical dishwasher uses between 8 and15 gallons per load. High efficiencywasher use around 6.

The Dishwasher is about 1.4% of typicalwater use.

Faucets represent 15.7% of the typical

water use. One drip per second from a faucet will

waste 2,700 gallons per year


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Kitchen Improvements

Install low-flow faucet aerators.

Only run dishwasher when full.

New dishwashers are powerful. Dont pre-wash dishes.

Collect excess sink water for wateringplants


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Laundry


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Laundry

Replace old washerwith water savermodel. New models

use 23 gallons ascompared to the 41 ofolder machines.

Only wash full loads.

Pretreat stains toavoid rewashing

The washing machineaccounts for 21.7% oftypical water use.


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What is Grey Water and Dual

Plumbing? Grey water is domestic wastewater from

sinks, tubs, and clothing washers that isused for lawn care

Dual plumbing is a process of recyclingwater by having to separate drainage linesto the city utility. St. Petersburg, Fl

currently is using this process.


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Outdoors


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The Car Wash

A 15 min. car washuses 100 gallons ofwater.

Use a bucket of waterand rags instead

Go to a commercialcar wash that reusestheir water.


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The Family Pool

Ways to Save:

A pool cover

Repair any leaks

An inch a day leak in a15 X 30ft pool wastes102,000 gallons.

Turn heat down toslow evaporation.

Maintain pool to avoidwater waste in refillingit.

Keep water in pool.


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Landscaping (Continued)

Properly fertilize your lawn.

Mulch when you mow by leaving clippingin the yard.

Watch for weather changes when wateringlawn.

Harvest rainwater

Try Xeriscape and using native plants.


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Xeriscape: History

Began in 1981 withthe AssociateLandscape

Contractors ofColorado.


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Goals of Xeriscape

Planning anddesigning for beautyand waterconservation from the

beginning. Create practical

areas.

Group similar waterneed plants togetherto prevent over andunder watering.


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Benefits of Xeriscape

Reduces water use

Reduces fertilizer use

Reduces pesticide use Lower maintenance costs

Reduces runoff

Preserves Topsoil Drought Tolerant

Lower maintenance needs


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Xeriscape

These low waterplants can thrive withless water use.

In Las Vegas,Xeriscape usereduces a familieslandscape water use

by 33-39%

U i t t t


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Using your water meter to

conserve Leaks can account for more than 10% of a

typical families water bill.

On a straight reading meter, read it justlike a car odometer.

A round reading dial:

Start with the 100,000 ft dial and work around

to the 1 ft dial. If between numbers rounddown.


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