Ngaphambi kokufaka ifosholo noma imisele emhlabathini, osonkontileka bokunisela badinga isu elicacile lokuqinisekisa ukuthi uhlelo lwabo lokuchelela lufakwe ngendlela efanele.
Okokuqala ohlwini ukudayela u-811 ukumaka insiza endaweni. Okulandelayo, usonkontileka wokunisela udinga ukwazi ukuthi bazomba ini.
Ukwazi uhlobo lwenhlabathi kubalulekile ngoba ezinye izindawo zingase zibe amatshe futhi kungase kudingeke amathuluzi engeziwe noma izinto zokusebenza ukuze kugqitshwe ipayipi ekujuleni okufanele. UJason Fuller, umongameli weRed & White Greenery eGeorgetown, eTexas, uthe inhlabathi iphinde ithinte amahora okusebenza kanye nesikhathi sokunisela esidingekayo ukuze kuvinjelwe ukugeleza kwamanzi kulezi zindawo.
Le nkampani ihlinzeka ngenkasa, ukwakheka kwezwe, i-hardscape, impahla yesayithi, ukwakhiwa kwamatshe kanye nokugcinwa kohwebo. Amaphesenti angu-80 amakhasimende akwaFuller angamakhasimende ezentengiselwano kanti u-20% angamakhasimende ahlala khona. Imali engenayo yonyaka yenkampani yi-US$11 million.
Lapho ufaka isistimu yokunisela, qiniseka ukuthi ipayipi lihlanganisiwe futhi izifafazi zifakwe emthambekeni. (Isithombe sihlonishwa yiJainism)
Uhlelo lokuchelela kufanele lucacise zonke izici zohlelo, okuhlanganisa uhlobo, ubukhulu, kanye nendawo yezinqamuleli zokubuyela emuva; usayizi wepayipi le-trunk kanye nendawo evamile; usayizi we-valve nendawo; usayizi we-sideline kanye nendawo evamile; kanye nohlobo lwekhanda lokunisela, usayizi we-nozzle, nendawo.
U-Fuller uthe kufanele bahlole ukugeleza nokucindezela kwe-flowmeter, okuzoshintsha ukwakheka kwesistimu yokunisela. Umfaki kufanele futhi acabangele uhlaka lwesakhiwo kanye nezinhlobo ezahlukene zezitshalo eziniselwayo.
Umphathi we-akhawunti kasonkontileka omkhulu we-Rain Birdos u-Steve Barendt uthe ukuvakashela indawo ngaphambi kokufakwa kuvumela usonkontileka ukuthi ahlabe umkhosi noma yikuphi ukungqubuzana phakathi kwepulani lendawo kanye nesiza sangempela.
"Lungisa njengoba kudingeka ukuze uqinisekise ukuthi izinga lokugeleza elitholakalayo endaweni alidluli," kusho uBarente. Maka noma yiziphi izinguquko ezenziwe ngesikhathi sokufakwa emidwebeni njengoba yakhiwe.
Nakuba ukujula komsele kuzohluka ngokuya ngemithetho yendawo nendawo, kuneziqondiso ezijwayelekile. USteve Hoveln, umphathi omkhulu womkhiqizo wama-rotor, ama-valve kanye nezinto zokufakwa e-Hunter Industries, uthe ezindaweni okuhlalwa kuzo, ukujula kwamapayipi okwamukelekayo kungu-8 kuya ku-12 amayintshi.
Wanezela ukuthi kumaphrojekthi wezohwebo, umugqa oyinhloko uvame ukuba ngamasentimitha angu-18 kuya kwangu-24 ukujula, futhi umugqa oseceleni osuka ku-valve uye emlonyeni ufakwa ongashoni, cishe amasentimitha angu-8 kuya kwangu-12.
Uma isistimu isilungile futhi isebenza, ungenza izinguquko ezincane ohlelweni. (Isithombe sihlonishwa yi-Hunter Industries)
UHoveln uthe uma kusetshenziswa amapayipi anama-gaskets ezindaweni ezithengiswayo, osonkontileka kufanele bacabangele amazinga okugeleza aphezulu, okungadala ukulimala kwama-engeli uma kungaphathwanga ngendlela efanele. Ngaso sonke isikhathi lapho ipayipi lizungeza amadigri angu-90, isifaki kufanele sengeze i-thrust block, sisonge yonke into efanelekile ngokhonkolo noma sifake ibhulokhi ngemuva kwayo njengesisekelo.
Ngemuva kokuthi i-valve isethwe futhi ipayipi ixhunyiwe, xhuma i-swing joint ku-rotor, bese uyilungisa ekuphakameni okufanele. Ngemva kokwengeza i-nozzle, isifaki singaqala ukulungisa i-rotor ku-arc efanele ukuze kugwenywe ukuphuza ngokweqile ezindaweni eziqinile noma izakhiwo. U-Barendt uthe ungenza izinguquko ezithile ngaphambi kokusebenzisa indawo, kodwa indawo kufanele iqhutshwe ukuze uyishunise.
Umphathi wezokumaketha we-Jain Irrigation uMichael Derewenko uthe nakuba ukugcwaliswa ngemuva kubonakala kulula, kunendlela efanele yokungcwaba lelipayipi.
UHoveln uthe uma indawo iyidwala futhi ipayipi lePVC libekwe emseleni, amatshe acijile angase afake ipayipi ngenxa yokudlidliza okuncane, okudale izinkinga. Ukwakha umbhede wesihlabathi wepayipi-futhi uwugcwalise ngesihlabathi-kuzovimbela imiphetho ebukhali ekulimazeni ipayipi.
Gwema ukufaka ama-sprinklers ngqo ku-PVC eqinile, ngoba isisekelo sizophuka lapho abagunda utshani noma izimoto zigijima phezu kwazo. Ukuvumela ukuthi umlomo wombhobho unyakaze, kufanele kusetshenziswe ijoyinti lokushwiba elenziwe ngaphambilini-noma ipayipi elinobude obungamayintshi angu-18 ukuya kwangu-24, kuye ngebanga.
Isiqondiso se-lateral kufanele sigijime ngokuhambisana, hhayi phezulu komunye nomunye ngangokunokwenzeka, ngoba imisele esanda kugcwaliswa ayinawo amandla anikezwa inhlabathi ehlanganisiwe. Uma imishini esindayo ihamba ngamapayipi asanda kugqitshwa, amapayipi angase ampintshene, abangele imigqa emincane okunzima ukuyibona ukuba iphuke. UDerewenko uthe usonkontileka kufanele aqinisekise ukuthi udoti nemfucumfucu akushiywa emiseleni.
“Inkinga enkulu wukushiya udoti nemfucumfucu emiseleni. Lokhu ngeke nje kwengeze udoti esizeni, kodwa ngemuva kokufakwa kwepayipi, idwala lizobhoboza ipayipi,” kusho uDerewenko. “Ngaphezu kokugcina imfucumfucu ngaphandle kwemisele, kungcono ukuthi kuthathwe inhlabathi ethambile esanda kufakwa ukuze kuqinisekiswe ukuthi ipayipi liqinile futhi kufakwe izinto zokufafaza ukuze lilingane futhi libheke endaweni efanele.”
U-Barendt uthi ukukhethwa kwe-nozzle okungalungile kungenye iphutha elivamile. Isibonelo, usonkontileka angafaka i-nozzle engu-No. 2 noma engu-3 ku-rotor ngayinye endaweni. Njengoba wonke ama-rotor ekhipha inani elifanayo lamanzi futhi ajikeleze ngesivinini esifanayo, i-rotor ye-90-degree izothola kabili inani lamanzi njenge-rotor engu-180-degree ngoba ihlanganisa i-arc kabili kanye nekhava eyodwa kanye ngesikhathi esidingekayo 180 degrees.
"Kusho futhi ukuthi uma kukhona noma iyiphi i-rotor engu-360-degree phakathi negceke, izovala i-arc kanye kuphela u-j kanye ne-rotor engu-90-degree ekhoneni izovala izikhathi ezine," kusho u-Barente. "Umphumela uba ukuthi amakhona amanzi agcwele amanzi futhi/noma indawo emaphakathi yomile futhi ingaphansi kwamanzi."
Isixazululo sale nkinga ukuthola usayizi womlomo wesikhala ngokweziqondiso zomkhiqizi. U-Barendt wengeze ngokuthi ukushintsha usayizi wombhobho kuzophinde kushintshe ibanga eliphonsayo, ngakho-ke isikhala nosayizi kungambozwa ngosayizi olungile wenozzle ukuze kuhlanganiswe kahle ikhanda nekhanda.
Ngokusebenzisa ubuchwepheshe nemikhiqizo yekhwalithi ephezulu, abafaki bangaqinisekisa ukuthi isistimu ingasetshenziswa amashumi eminyaka futhi yonge izindleko kumakhasimende.
UFuller wanezela: pEnye yezinzuzo eziyinhloko zesistimu yokunisela eklanywe kahle futhi efakiwe ukuthi amakhasimende angakwazi ukunisela impahla yawo ngokuphumelelayo, alondoloze isikhathi futhi okubaluleke kakhulu, onge imali.q
Uma uthanda lesi sihloko, sicela ubhalisele Ukuphathwa Kwendawo ukuze uthole izindatshana ezifanayo.
Isikhathi sokuthumela: Jul-03-2021
