148 lines
5.6 KiB
Plaintext
148 lines
5.6 KiB
Plaintext
he buili ol «mere, “5mg a eenlral yeriical
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fling lorrn in whieh iii pour the euncrnir It is casy
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slough io ieale up or dawn linrn rhese 5|ng when
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eadsiubug Vank or swalc capaeriy needed lor dwellings,
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Even ln very low reinlallsol incm iir so, large had or
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m run.ciil surlace will supply all me drinking waier
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dial we have hnks m slaie li in berause ol the cosis 0'
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building (isms, we can selddi-n amid rd siiiie all ihe
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rairi ii is possible lo eaich,
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fluids are ramrriaiily sealed and albums? crim-
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peiued by lsalhc, and in deseri downpouiscalleei large
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eapansea o1 waher ln emu areas, we can seal hull slnpfi
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lbw: ““155 wrih mncreie, wan biiumen, or plush
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and nu the m: as a “mi", llul inc cheapesi ml is iu
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leraie near a bare rud- slub m praniie, rir a narursl
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sealed eap on hlllb, aruuud whieh we run a gullex
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umk<u| or cemenredl iu sroraee usierns or iaislss.
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Tanks lversus damsl ran siaiud on or above hie seil
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ware, and are hilly sealed and usually ruoled, Large
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mild haiea iuul which is “sell a oarchrnenl rd |hzlank
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Seinenmes a link 15 excavaled and sealed wilh a laugh
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plaselc or mbber membrane. sites are usually ehusen
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above houses iar serilemenis, and an accessury windmill
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in louihill senleinenls lnr a mlmrrpowlnd pumpl is
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used In lih elean gruundwrler horn wells |u ranlis in
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any period of higher demand 0h very llai plains, ihe
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ranks are raised on a siand, and IM wiridrriill lilis bu ihe
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ianlr so. house and slack waNr—a yery reliable and
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MAllyrused sysiem even in town» some figures (a in
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aid to flung: planmny lorarld areas is shown in Table
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m.
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urge garages, lanaries. rerieaiidn halls, and shops
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provide ample robl area lar eaiehmenl in mesl
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ruriununiiiss, and are so used in arid areas The links
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ihemselves can be canhrshahewd, parily or lully
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buried eaveied wirh Vines or ihey can sraud iu shaded
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couriyards. siied uphrll lmm houses, Inge rround
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mule can [mm ihe loundarions ulbairis or gangs, and
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lhe spare beiweeri such ranks r ceel sloie lar mot and
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huii erup lriaure 11.29).
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All ihe rnure wander, iherelore, lhal up“! haul in
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Auslralial ranlis are a rare eyeni ln selileriieni, and
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elean nmwalzr is lei run to wasie
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There is seldom Enough slumse losall mlr mof waler
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bi mile, so we an lhm run ihe overflow rd swales in
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she garden siieh swales can be simple ehaniieisy or lin
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deep nods) lung plasnc-lirwd and sandehlled swales,
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lrdni which we ran pump weier, and on or beside
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which we ean gmw plains This surplus garden waier
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can be Ingmlnkd by shower waier [mm lhe house.
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Near swil: (or real drip are nude rrein mckfihmglr
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fllkd Mlkrws or channels wuh vemcal couerere eds-s,
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buriiiisedled below iealliiw lrihliiaii-ion (Film am»
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There are some inyihr sumundmg ihe slung! cf
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waber in lanky
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1. h is sugnani wales (unmie; ii lashes hush luryeals
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and rernairu elear and clean).
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a, It breeds mesquiios lnol rrue ol rowed lnnkr,
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mosqullos can be ieially excluded, ln open iaisks.
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mun-uh"; nah eanbesioekedl
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a ll cuniarns dusi, 2k lrnin irie ruul lrnae, bul ihis
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seuks as ii blnluglta] sedimeni and keeps ihe waier
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elearl
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Geneiaiions dl healihy Amtrallans have been reared
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on iankwaier luiysell included». and haye escaped
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cholera, bladder cancer (from asbesles pipesl. hearr
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auntks born acid ruler, and ihe lbs addmvls now
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used in reoculared waler. cu a (ink and snrvxvc' Tanle
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cnn be brielelined, domed, and rendered in sandy soils,
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bum bl -siacli sack" (plashc iubes iil 1:9 cemenl-sund.
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prirked and soaked in waier) ln plastlrr ned hides,
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burli ol’ eemenr plasier an a wire-nerlin; base,
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ereayaied in rock, or puurcd ol eoncrele in mobile sreel
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larms rm sllc or ai she lamry They are also made 0! lor
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lined w’ h) ,alyanised sleel. fibreglass, plas‘ic, or
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plasiie resins.
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his berielicial I0 place lirnesione, dblonuie, or uiarble
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glib/cl ler "loll-l9: shells: in a bag in any rank ru nilset
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aridiry, To fix merallir sahs, and lo “havdzn‘ ihe waier,
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as ii is hnlfluer l0 dnnk dlkdhne or neuiral waier (less
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heari aliaelis, less melal ihe l, The lining ul
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links in arid areas should be mlzxml la rrery building.
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Al ihe lush every heme an dnnk iis awn ranli wiirr,
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and ai mesi a large house ml will guw a home sandal
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and orehaid on wasrewsrer and oyerhow,
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WATER HARVEHNG 0N OPEN srrEs FOR TANKS
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on C|STERN5
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Wheuvu good rlays are lound, we can make earih
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nnksln «he ground The mulls areihar
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. Tanls should be deep and narrriw,
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. They shauld rniereepia run<illareai and
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- They should ideally be roofed iii preveni eyapars
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anon,
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By mihlunng a sysbern cl cisberns, links, and swales,
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any deseri seulemenl lwherever lven‘e rainlall
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“(reds an cm: can creaie lor iisell a reserve or soil and
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ml water! ml is, rii eliecl, an basis. The prupdnion a!
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wmer supplied to swrlrs by loeal rand-i and [mm
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more widespread iuiempiar banks hlrvzslms irie
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overland new el iunmmdmg areos iberelore changes
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as raiulall decreases; more exrensive harvesir or
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landscape runou musi be made anee rainlall deelines
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belaw 30 cm, and inusl be direned io village swales ni
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suppon hrs: rrees
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bolh lor dnrnesiic and llvcslock use, a varieiy a!
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delibeiaiely sealed or eurnpaned mum" surleea have
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been eunsirueied in Ausrralia and elsewhere. Sorne al
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ihese are ai gmund level, and range lrorn
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bitumen—walled and tensed areas he roadod ialchmeni
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nl aw in 1%; by la in wide rounded and 5::de sur-
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lace aide slopes are an a ratio al lizn, dralns at
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l loo-mm. The anhnn besiabilised by gum, a ligir
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eeuieni mix, or simply well<ompi¢led rlay soils.
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Fi‘un ml,
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Otherspproicries are live Shea meul mating areas a:
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up lo we square rnerres, ai ground level. (Rdmg la
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llxmm I ianls Slaw eureied wflh mud meial cm be
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sleeper ihan Thus: on earih ll can, at euurse, be
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339
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