I-air pump yakho ye-hydroponics itsale amanzi ngomva (back-siphoned) ngenxa yokuba ibibekwe kwindawo ephantsi kunomgangatho wamanzi kwitanki yakho ngexesha kucinywe umbane. Xa umbane unqamukile kwi-electromagnetic diaphragm pump—nokuba kungenxa yokukhubeka kwe-circuit, umcoci ocime iplagi, okanye ukucima kombane ngequbuliso (load shedding)—uxinzelelo lomoya oluqhubayo (positive air pressure) luyawa kwangoko. Uxinzelelo lwamanzi (hydrostatic pressure) kwitanki lutyhala umxube wezondlo ubuyele ngasemva kumatshini wokukhupha amagwebu (bubbler), phezu kodonga lwetanki, luze luhle ngemibhobho yomoya luye ngqo kwisikhongozeli se-pump, lukhuphela amashumi eelitha phantsi kumgangatho wegumbi lakho lokufundela.

Ukuba ubufakele ivalve eqhelekileyo yeplastiki yokuthintela ukubuya komoya namanzi (aquarium check valve) kodwa kwaphinda kwakhukula, unobangela ngokuqinisekileyo kukwenzeka kwamakristale eetyuwa zeminerali. Kwi-hydroponics, iivalve zokuthintela ukubuya kolwelo azisebenzi emanzini acocekileyo; zisebenza kumxube onetyuwa eninzi ethi buthule yonakalise iitiiti zoomatshini zokunqanda amanzi (mechanical seals).

Inzululwazi yeFiziksi Yokutsaleka koLwelo Ngomva

Ukuze uqonde ukuba kutheni ityhubhu yomoya idla ngokuziphatha ngokukhawuleza njengetyhubhu yokukhupha amanzi (drainage hose), jonga okwenzeka ngaphakathi kumbhobho ngelixa i-pump isebenza xa kuthelekiswa nomzuzwana emisa ngawo.

Ngelixa isebenza, i-electromagnetic diaphragm okanye i-piston pump ivelisa uxinzelelo lomoya oluqhubekayo, olutyhala umoya wehle ngetyhubhu, loyise uxinzelelo lwamanzi emsulwa, luze luphume kwimingxuma yelitye lomoya (air stone). Oku kuqukuqela okuqhubekayo kugcina amanzi engangeni kwaphela kumbhobho.

Ngalo mzuzu unqamuka ngawo umbane, kwenzeka izinto ezintathu ngokulandelelana ngokukhawuleza:

• Uxinzelelo oluqhubayo luhla lube nguziro: Ii-diaphragm ziyayeka ukungcangcazela kwangaxeshanye. Akusabikho siqobo somatshini esithintela ulwelo kwilitye lomoya.
• Umoya uyaphola uze ufinyele: Umoya ocinezelweyo ongaphakathi kwityhubhu engaphantsi kwamanzi uphola ngokukhawuleza ufikelele kubushushu bomxube wezondlo, ufinyele ngevolyum uze uvelise uxinzelelo olungephi olutsalela ngaphakathi (negative pressure) kumbhobho.
• Uxinzelelo lobude bamanzi luyalawula: Umgangatho wamanzi kwitanki ungasezulu kune-pump esemgangathweni okanye kwishelufu esezantsi. Umxhuzulane wenza uxinzelelo olubheka phantsi kuloo donga lwamanzi lungaphezu kwelitye lomoya ($P = \rho g h$). Olo xinzelelo lunyanzela amanzi ukuba angene kwimingxuxuma emincinci yelitye lomoya aze anyuke ngetyhubhu.

Kamsinya nje ukuba ulwelo lufikelele kumphezulu wetanki yakho luze luqale ukuhla luye ngaphantsi komgangatho wamanzi, umxhuzulane utsalela loo mzila wamanzi uhlayo phantsi emgangathweni. Oku kumisa ukutsala kolwelo okuqhubekayo (siphon). Akusayi kuma de umgangatho wamanzi kwitanki uhle ube ngaphantsi kobude belitye lomoya okanye umoya uqhawule oku kuthungelana.

Kutheni Iivalve zePlastiki eziXhasayo Zisilela Kwiinkqubo ze-Hydroponic

Icebiso eliqhelekileyo elithengiswa neekhithi eziqhelekileyo lilula: faka ivalve yeplastiki engabuyisiyo yexabiso eliyi-R15 kumbhobho womoya. Kwitanki yeentlanzi zamanzi angenatyuwa, loo valve ingahlala iinyanga ezilishumi elinesibhozo. Kwigumbi lokufundela eline-hydroponics, ihlala isilela kwiiveki ezimbalwa.

Imixube yezondlo ze-hydroponic yimixube exineneyo yeetyuwa zeminerali—i-calcium nitrate, i-potassium phosphate, i-magnesium sulphate, kunye ne-iron chelates. Xa amagwebu egqabhuka phezu kwamanzi, okanye xa ulwelo lungcangcazela ngaphakathi kwevalve ngexesha lotshintsho oluqhelekileyo loxinzelelo, umxube wezondlo uyangena kwigumbi levalve.

Ukusuka apho, ukusilela kwenzeka ngeendlela ezintathu zoomatshini:

• Ukuqweqweka kwetyuwa kwindawo ehlala ivalve: Njengoko ubumanzi obungaphakathi kumbhobho womoya buphuma kancinci ngokomphunga ngexesha lokusebenza, iityuwa zesichumiso ezinyibilikileyo ziguquka zibe ngamakristale aqinileyo amancinci. Ivalve eqhelekileyo ixhomekeke kwi-flap encinci ye-silicone okanye yerabha ecinezeleka tyaba kwiplastiki. Imvuthuluka enye yetyuwa ye-calcium ehleli kuloo gasket yerabha ithintela ukutywinwa ngokupheleleyo, ivumele ulwelo ukuba luvuze phantsi koxinzelelo lokutsaleka kolwelo (siphon pressure).
• Ukuqokelelana kwe-biofilm: Amatanki asezigumbini zokufundela ayafudumala phantsi kwezibane zokukhulisa izityalo (grow lights) okanye ngexesha leeholide ezishushu zesikolo. I-algae engabonakaliyo lula namehlo kunye nee-biofilm zeebhaktheriya zambatha iindonga zangaphakathi zetyhubhu kunye ne-diaphragm yevalve, nto leyo edala ubumanzi obuncangathi obubangela ukuba i-flap ye-silicone encinci incamathele kwimeko evulekileyo.
• Ukonakala phantsi kwe-ozone okanye umoya oshushu: Ii-flap zerabha ezingabizi kakhulu ziyaqina xa zifumana umoya oshushu ophuma kwi-pump, ziphulukane nokubhetyebhetye kwazo zize zisilele ukuvaleka ngci xa uxinzelelo olubuyela ngasemva lusiba khona ngokuthe ngcembe.

Uthelekiso Lweevalve Zokuthintela Ukubuya Kolwelo

Ulwakhiwo Oluchanekileyo: Indlela Yokukhusela Umgangatho Wegumbi Lakho Lokufundela

Ungaze uthembele kwivalve yomatshini njengomqobo wakho ophambili wokuthintela umonakalo wamanzi kwisakhiwo semfundo esinomgangatho weplanga (parquet), iintambo zeeseva, okanye imibhobho yeentambo zombane. Ifiziksi ithembeke ngakumbi kuneenxalenye ezihambayo.

1. Nyusa i-Pump Ngaphezu Kowona Mgca Uphezulu Wokuzalisa

Owona mthetho ulula nongadingi lulungiso ngowomlinganiselo wendawo: i-air pump kufuneka ihlale ibekwe phezulu ngokomzimba kunowona mgangatho wamanzi uphezulu wetanki.

Ukuba ibhafu yakho ye-deep-water culture (DWC) okanye itanki ye-nutrient film technique (NFT) izaliswe kude kufikelele kubunzulu obungama-600 mm, i-air pump kufuneka inyuswe kwisakhelo es eludongeni okanye kwishelufu ephezulu kuma-800 mm. Ukuba umbane unqamukile, amanzi aya kunyuka ngetyhubhu yomoya kuphela de alingane nomgangatho wamanzi asebusweni betanki. Awakwazi ukunyuka ngaphezulu komthombo wawo ngaphandle komsebenzi owenziweyo kuwo ngaphandle.

2. I-Loop Ephakamileyo Yokuthintela Ukutsaleka Kolwelo

Ukuba ukubekwa kwegumbi lakho okanye uyilo lwetroli lukunyanzela ukuba ugcine i-pump kwishelufu esezantsi okanye phantsi, kufuneka uhambise ityhubhu yomoya kwilophu eqinileyo ephakamileyo:

• Hambisa ityhubhu ime nkqo ukusuka kwitanki unyuke uye kwindawo ubuncinane emalunga ne-150 mm ukuya kuma-200 mm ngaphezulu komqukumbelo ophezulu kakhulu wesikhongozeli.
• Bopha ityhubhu iqine eludongeni okanye kwisakhelo kuloo ntloko iphezulu usebenzisa i-cable tie okanye i-saddle clamp. Ungayivumeli ukuba iwe ngokuhamba kwexesha.
• Hambisa umgca uwele ezantsi kwi-pump esemgangathweni ukusuka kuloo ncopho.
• Faka ivalve ekumgangatho ophezulu yokuthintela ukubuya komoya kuloo nxalenye yehlayo eya kwi-pump njengomkhuseli wesibini owongeziweyo—ingaze ibe ngowokuqala.

Kwiitroli zezikolo ezenziwe ngokweemfuno okanye iilabhoratri zenzululwazi ezidibeneyo, i-Sheen Robotics iyila iinkqubo ezinendawo zokuphula ukutsaleka kolwelo (physical siphon breaks) nokwahlulwa kwe-pump okwakhelwe ngaphakathi kwii-nkqubo zethu ze-hydroponic zasezakhiweni zokufundela ukunqanda ukukhukula kweelabhoratri ebusuku ngexesha lokunqamuka kombane okungalindelekanga.

Inkqubo yeVeki Yokulungisa Iinkqubo zaseGumbini Lokufundela

Ukuba ulawula inkqubo esele ikhona, yongeza olu phenyo lwemizuzu emibini kwimisebenzi yakho yesiqhelo:

• Hlola ukucaca kwetyhubhu yomoya: Ukuba ubona amathontsi amanzi okanye i-algae eluhlaza inyuka ngaphezu kwe-100 mm kumbhobho isuka kwilitye lomoya, khulula ityhubhu, yihlambe ngamanzi acocekileyo, uze utshintshe ilitye.
• Vavanya iivalve zokuthintela ukubuya phantsi koxinzelelo olunguziro: Cima iplagi ye-pump ngesandla ngelixa umi ecaleni kwenkqubo. Bukela ityhubhu yomoya. Ukuba amanzi adlula kwivalve nokuba kuhamba kancinci kakhulu, yilahle loo valve kwangoko. Ukufaka iivalve ezinokhwekhwe kwiviniga emhlophe kuyasusa isikali seeminerali okwexeshana, kodwa ii-flap ze-silicone zihlala zigcina umkhondo zize zisilele ukutywina ngokuthembekileyo emva koko.
• Cinga ngocimo lombane (load shedding): Ukuba isikolo sakho sidibana nocimo lombane oluqhelekileyo lwe-Stage 2 ukuya kwi-Stage 6, lindela ukuqala nokumisa okuphindaphindiweyo kwe-pump yonke imihla. Isiganeko ngasinye sokujikeleza sixhokonxa iivalve kwaye sityhale ulwelo lunyuke ngetyhubhu. Ukuxhomekeka komatshini ngaphandle kokuphakama kwendawo ekugqibeleni kuya kusilela ngexesha lokucinywa kombane ngempelaveki.

I-hydroponics yasegumbini lokufundela inikezela ngezifundo ezibalaseleyo kwibhayoloji, kwiikhemistri, nakuvavanyo oluzisebenzelayo (automated sensing), kodwa amanzi alandela indlela engenamingeni ngamaxesha onke. Beka ii-pump zakho ngaphezu komgca wamanzi, phakamisa ii-loop zakho, kwaye uthathe iivalve zoomatshini njengoncedo lwethutyana, hayi njenge-inshurensi yomgangatho wakho.