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<br /> <br />Table 2 - Comparison of Efficiencies for Common Residential Irrigation Systems <br /> <br />Irrigation Eslinl;l!cd Be<" ManagcllIt'l1l <br />Descriplil1n Efficiency <br />Tt'(~hnolog~ (%range) Practice.. <br /> Relr,I(I.lble pop-up ~prdr or rotary sprinkler Adjust spnnklcr he.lds <br />AutomallC m-gmund WJ.\'(lll.i run,,!f onto <br />sprinklers}'stems hC.lds ccmneCled to undergrounJ piping spray 40---80% sidewalks. streels. drin-- <br /> WatN .lcross 1.lOd""-.:3ped aTCJ,:; ways. Jecks, or p;ll1os. <br /> Dnp sysl.:ms ddt\'cr \\J.lt'r dlrt~ltlr on OT Set t(l imgalc lmty <br />\licroirnpllOl1 \:.x-low lhl" soil surface through emUle~ ,dong when SOIl is somewhat <br />(dnp l)T 11llCfll- plp...'S or ho"..'s \tH:n)spnnklcrs. deltWT W:ller LOp to 95% dry W::Ho>r deepl? but <br />spnnklcr1 system:<- lrom small ('rom!,'r., placed t'll shon risers Just infrequently. <br /> .llxwc the sOil surface_ <br /> \lade of scmi-pem1l'ablc malenals, soaker Lnknc>"m: some- St't Itl trng;ltt' only <br /> what lessdfl- when soil is ,;.lm~'what <br />S\1Jkcr ht'lSCS ho~s slowl)' releas;: water aklflg the length of Clent than dnp dry Wat~"r det'ply. hUl <br /> lhe hose_ <br /> systems Infrrquently <br /> TrJdl\lonal h(1:.e~ conm'Cted to .1 !TIo\;n!!. spnn- <br /> klcr head arc dragged manually acwss the \"ariahle efficiency \V.llef ~lflly landsc,1pe'd <br />Hl'Si? end sprinkkrs Irrigated area_ HOSI."-end spnnklers vary In the d~"pending (m ared AnJld nm.1ff. Sel <br />and "h()se-dragglng~ amount lJf water apphed Spol sprinkler... 1m. limt'n, and mow spnn- <br /> gate small areas qUICkly OSCillating spnnklers !TIanagemem klers when needed <br /> cover largt"r areas and apply water more slowly <br /> St;mdard aUlOmallC controllers can be pro- \tlY Of may nllt <br /> Impron' dfica~n- <br /> grammcd to \\ ater dillen'nt Iand"("ape :llIlCS cy delX'nding on \'",nering lav,ns before <br /> for specihc Ilffies <br /> manageml'm 10 a,m. or after (1 p.m <br /> mlnlmt:es [T Wah'r <br /> TraJlti,-1na\ ET C(lOtW[]Crs are prr-pro- losses <br />Automauc grammed em the basis of histor101 ET Can lmpn.we <br />controllers for records...d"lily, wt'ekly. momhl). or .mnu;tl efficiency AutomatIC r.lln sen- <br />reCl'Tds4--Q\-H a perilJd of ~\'o:ral year:> St)mc sor dl.'\ices owrnde <br />sprinkler s)'!'tcms systems may also han: their <)wn sensor that 2lL50% programmed watenng <br /> transmits information (0 the controller, schedules and shut off <br /> the s}'slem dunng or <br /> Real-urne wCalher-based controllers tolleel and C.mimpr(we after slgnihcant rJmfal1 <br /> dissemmate daL:l rfl)m wC'3lhef stations across efficiency <br /> theC\l\lntry llh-9')% <br /> <br />Sourt:es Tom Ash. '"fT Controllers. Weather-Based ~ntrollers. Smarr ~r:rro/lef'5.1Nha! Do You N~ [0 Know to Achi&'e Long-term VlOler Use <br />E(fioency'" \tVhlte Paper wntten for the Callfomia Boy-Deito Aurhorrry (CAlFED). Richard A DJamond. "PrOJ<<! Review of the IrVIne ET Controller <br />ResidentioJ Runoff Reduction Stud,/"/l\iine, Calif: Irvine Ranch Waler D,s[nct (2003). See NM\'_grrencaorg ft:x more MiPs <br />