I-Wirecutter isekela abafundi. Uma uthenga ngesixhumanisi esikuwebhusayithi yethu, singase sithole ikhomishini yokubambisana. funda kabanzi
Siphinde senza i-Aquasana Claryum Direct Connect yaba ukukhetha okuhle - kulula ukuyifaka futhi ingahlinzeka ngokugeleza kwamanzi amaningi kumpompi okhona.
Noma ubani ophuza amanzi okuphuza angaphezu kwamagalani ambalwa ngosuku angathanda ukusebenzisa uhlelo lokuhlunga olungaphansi kwethangi njenge-Aquasana AQ-5200. Uma ukhetha (noma udinga) amanzi ahlungiwe, lokhu kunganikezwa njalo kusuka kumpompi ohlukile njengoba kudingeka. Sincoma i-Aquasana AQ-5200 ngoba isitifiketi sayo singcono kakhulu kuzo zonke izinhlelo esizitholile.
I-Aquasana AQ-5200 ithole isitifiketi esingcolisa kakhulu, itholakala kabanzi, inentengo efanelekile, futhi inesakhiwo esincane. Yisistimu yokuqala yokuhlunga amanzi engaphansi kwethangi esiyifunayo.
I-Aquasana AQ-5200 idlulile isitifiketi se-ANSI/NSF futhi ingasusa cishe ukungcola okuhlukahlukene okungu-77, okuhlanganisa i-lead, i-mercury, ama-volatible organic compounds, izidakamizwa, nezinye izinto ezingabanjwa kakhulu ngabancintisani. Ingenye yezihlungi ezimbalwa kakhulu eziqinisekiswe yi-PFOA kanye ne-PFOS. Lawa ma-compounds ahilelekile ekwenziweni kwezinto ezinganamatheli futhi athole iseluleko sezempilo se-EPA ngoFebhuwari 2019.
Izindleko zokushintsha isethi yezihlungi zingaba ngu-US$60, noma isikhathi sokushintsha sezinyanga eziyisithupha esinconywe yi-Aquasana singama-US$120 ngonyaka. Ngaphezu kwalokho, uhlelo lukhulu kuphela kunezitini ezimbalwa zesoda futhi aluthathi isikhala esiningi esibalulekile ngaphansi kwesinki. Lolu hlelo olusetshenziswa kabanzi lusebenzisa izinsimbi zensimbi ezisezingeni eliphezulu, futhi ompompi balo beza ngezindlela ezahlukahlukene zokuqeda.
I-AO Smith AO-US-200 ifana ne-Aquasana AQ-5200 ngokwezitifiketi, imininingwane kanye nobukhulu. Ihlukile kweyakwaLowe ngakho-ke ayitholakali kabanzi.
I-AO Smith I-AO-US-200 ifana ne-Aquasana AQ-5200 kuzo zonke izici ezibalulekile. (Lokhu kungenxa yokuthi i-AO Smith yathola i-Aquasana ngo-2016.) Inesitifiketi esifanayo esihle kakhulu, ihadiwe yensimbi yonke, kanye ne-compact form factor, kodwa ngoba ithengiswa kuphela kwa-Lowe's, ububanzi bayo bokuthengisa abubanzi, futhi i-faucet yayo Kukhona ukuphela okukodwa kuphela: i-nickel ebhulashiwe. Uma lokhu kuhambisana nesitayela sakho, sincoma ukuthenga phakathi kwamamodeli amabili ngentengo: eyodwa noma enye ivame ukuncishiswa. Izindleko zokufaka esikhundleni sesihlungi ziyafana: cishe u-$60 ngesethi, noma u-$120 ngonyaka ngomjikelezo wezinyanga eziyisithupha onconywe yi-AO Smith.
I-AQ-5300+ inesitifiketi esifanayo esihle kakhulu, kodwa ngesivinini sokugeleza esiphezulu kanye nomthamo wokuhlunga, ifanelekela imindeni ephuza amanzi amaningi, kodwa izindleko ziphakeme futhi ithatha isikhala esiningi ngaphansi kwesinki.
Ukugeleza okuphezulu kwe-Aquasana AQ-5300+ kunezitifiketi ze-ANSI/NSF ezingama-77 ezifanayo neminye imikhiqizo yethu ethandwayo, kodwa inikeza ukugeleza okuphezulu (amagaloni angu-0.72 no-0.5 ngomzuzu) kanye nomthamo wokuhlunga (amagaloni angu-800 no-500). Lokhu kwenza kube ukukhetha kokuqala kwemindeni edinga amanzi amaningi ahlungiwe futhi efuna ukuwasebenzisa ngokushesha okukhulu. Iphinde ingeze isihlungi sangaphambi kokungcola, esingatholakali ku-AQ-5200; lokhu kungandisa izinga lokugeleza eliphezulu kwesihlungi sokungcola emakhaya acebile ngamanzi okungcola. Ngamanye amazwi, imodeli ye-AQ-5300+ (efakwe isihlungi sebhodlela samalitha amathathu) inkulu kakhulu kune-AQ-5200 kanye ne-AO Smith AO-US-200, kodwa impilo yesihlungi enconywayo iyafana, izinyanga eziyisithupha. Futhi izindleko zayo zangaphambili kanye nezindleko zokushintsha isihlungi ziphakeme (cishe amadola aseMelika angu-80 ngesethi noma amadola aseMelika angu-160 ngonyaka). Ngakho-ke, linganisa izinzuzo zayo kanye nezindleko eziphakeme.
I-Claryum Direct Connect ingafakwa ngaphandle kokubhoboza futhi iletha amanzi acwengekile afinyelela ku-1.5 amalitha ngomzuzu ngempompi yakho ekhona.
I-Claryum Direct Connect ka-Aquasana ixhuma ngqo kumpompi wakho okhona, okwenza kube inketho ekhangayo kakhulu kubaqashi (bangase bavinjelwe ukushintsha indawo yabo) nalabo abangakwazi ukufaka impompi yokuhlunga ehlukile. Akudingeki nokuthi ifakwe odongeni lwekhabhinethi yesinki - ingafakwa nje eceleni kwayo. Inikeza izitifiketi ezifanayo ezingama-77 ze-ANSI/NSF njengezinye izinketho zethu ze-Aquasana ne-AO Smith, futhi ingahlinzeka ngamalitha amanzi ahlungiwe afinyelela ku-1.5 ngomzuzu, ngaphezu kweminye imikhiqizo. Umthamo olinganiselwe wesihlungi ungamalitha angu-784, noma cishe izinyanga eziyisithupha zokusetshenziswa. Kodwa ayinayo i-sediment pre-filter, ngakho-ke uma unezinkinga ze-sediment, akuyona inketho enhle ngoba izovimba. Futhi inkulu kakhulu—amasentimitha angu-20½ x 4½—ngakho uma ikhabhinethi yakho yesinki incane noma igcwele, ingase ingafaneleki.
I-Aquasana AQ-5200 ithole isitifiketi esingcolisa kakhulu, itholakala kabanzi, inentengo efanelekile, futhi inesakhiwo esincane. Yisistimu yokuqala yokuhlunga amanzi engaphansi kwethangi esiyifunayo.
I-AO Smith AO-US-200 ifana ne-Aquasana AQ-5200 ngokwezitifiketi, imininingwane kanye nobukhulu. Ihlukile kweyakwaLowe ngakho-ke ayitholakali kabanzi.
I-AQ-5300+ inesitifiketi esifanayo esihle kakhulu, kodwa ngesivinini sokugeleza esiphezulu kanye nomthamo wokuhlunga, ifanelekela imindeni ephuza amanzi amaningi, kodwa izindleko ziphakeme futhi ithatha isikhala esiningi ngaphansi kwesinki.
I-Claryum Direct Connect ingafakwa ngaphandle kokubhoboza futhi iletha amanzi acwengekile afinyelela ku-1.5 amalitha ngomzuzu ngempompi yakho ekhona.
Bengilokhu ngihlola izihlungi zamanzi ze-Wirecutter kusukela ngo-2016. Embikweni wami, ngibe nengxoxo eningiliziwe nenhlangano yokuqinisekisa izihlungi ukuze ngiqonde ukuthi ukuhlolwa kwazo kwenziwa kanjani, futhi ngahlola isizindalwazi sabo somphakathi ukuqinisekisa ukuthi isitatimende somkhiqizi sisekelwa ukuhlolwa kwezitifiketi. Ngiphinde ngakhuluma nabamele abakhiqizi bezihlungi zamanzi abaningana, okuhlanganisa i-Aquasana/AO Smith, i-Filtrete, i-Brita, ne-Pur, ukuze ngibabuze ukuthi bathini. Futhi mina mathupha ngizibonele zonke izinketho zethu, ngoba ukuhlala kahle, ukuqina kanye nobungane bokusebenzisa kubaluleke kakhulu kumadivayisi owasebenzisa izikhathi eziningi ngosuku. Owayengusosayensi we-NOAA uJohn Holecek wacwaninga futhi wabhala umhlahlandlela wokuqala wezihlungi zamanzi ze-Wirecutter, wenza izivivinyo zakhe, wayala ukuhlolwa okwengeziwe okuzimele, futhi wangifundisa okuningi engikwaziyo. Umsebenzi wami wakhelwe esisekelweni sakhe.
Ngeshwa, ayikho impendulo efanayo yokuthi ingabe isihlungi samanzi siyadingeka yini. E-United States, ukuhlinzekwa kwamanzi omphakathi kulawulwa yi-EPA ngokuhambisana noMthetho Wamanzi Ahlanzekile, futhi amanzi aphuma ezitshalweni zokuhlanza amanzi omphakathi kumele ahlangabezane nezindinganiso zekhwalithi eziqinile. Kodwa akuzona zonke izinto ezingcolisayo ezingaba khona ezilawulwayo. Ngokufanayo, ukungcola kungangena emanzini ngemva kokuphuma esitshalweni sokuhlanza ngokungena noma ngokuphuma emapayipini avuzayo (PDF). Ukwelashwa kwamanzi okwenziwe (noma okunganakwa) efektri kungenza kube kubi kakhulu ukuvuza kwamapayipi angaphansi komfula—njengoba kwenzeka eFlint, eMichigan.
Ukuze uqonde ngokunembile izithako ezisemanzini lapho umhlinzeki ephuma efektri, ngokuvamile ungathola umbiko wokuqiniseka kwabathengi we-EPA yomhlinzeki wendawo ku-inthanethi; uma kungenjalo, bonke abahlinzeki bamanzi omphakathi kumele bakunikeze i-CCR yabo ngokwezidingo zakho. Kodwa-ke, ngenxa yokungcola okungenzeka kube khona, okuwukuphela kwendlela yokuthola ukwakheka kwamanzi akho ukucela ilabhorethri yekhwalithi yamanzi yendawo ukuthi ikuhlole.
Ngokusekelwe kokuhlangenwe nakho: uma indlu yakho noma umphakathi wakho indala, kulapho ingozi yokungcoliswa kwamanzi ikhula khona. I-US Environmental Protection Agency yathi “izindlu ezakhiwe ngaphambi kuka-1986 zinamathuba amaningi okusebenzisa amapayipi e-lead, izinto zokwakha, kanye ne-solder” - izinto ezindala ezazivamile ezazingahlangabezani nezimfuneko zamanje. Ukuguga kwandisa namathuba okungcoliswa kwamanzi angaphansi komhlaba okwashiywa yimboni yangaphambili yokulawula, okungaba yingozi, ikakhulukazi uma kuhlanganiswa nokuwohloka okuhlobene namapayipi angaphansi komhlaba agugayo.
Uma umndeni wakho uphuza amanzi okuphuza angaphezu kwamagaloni amabili kuya kwamathathu ngosuku, khona-ke isihlungi esingaphansi kwesinki singaba ngcono kunesihlungi sethangi. Uhlelo olungaphansi kwesinki luhlinzeka ngamanzi okuphuza ahlungiwe uma kudingeka, ngaphandle kokulinda ukuqedwa kwenqubo yokuhlunga, njengethangi lamanzi. Ukuhlunga "okudingekayo" kusho nokuthi uhlelo olungaphansi kwesinki lunganikeza amanzi anele okupheka - isibonelo, ungagcwalisa imbiza ngamanzi ahlungiwe ukupheka i-pasta, kodwa awusoze wagcwalisa imbiza ngokuphindaphindiwe ngenxa yalokhu.
Uma kuqhathaniswa nezihlungi zesinki, izihlungi zangaphansi kwesinki zivame ukuba nomthamo omkhulu kanye nokuphila isikhathi eside kwenkonzo - ngokuvamile amakhulu amalitha nezinyanga eziyisithupha noma ngaphezulu, kuyilapho izihlungi eziningi zesinki zingamalitha angu-40 kanye nezinyanga ezimbili. Ngenxa yokuthi izihlungi zangaphansi kwesinki zisebenzisa umfutho wamanzi esikhundleni samandla adonsela phansi ukuze zisunduze amanzi ngesihlungi, izihlungi zazo zingaba nzima kakhulu, ngakho-ke zingasusa uhla olubanzi lwezinto ezingaba khona ezingcolisayo.
Okubi ukuthi zibiza kakhulu kunezihlungi ze-pitcher, futhi inani eliphelele kanye nesikhathi esimaphakathi sokushintsha izihlungi nakho kubiza kakhulu. Uhlelo luphinde luthathe isikhala ekhabetheni lesinki elalingasetshenziswa ukugcina izinto.
Ukufaka isihlungi ngaphansi kwesinki kudinga ukufakwa kwamapayipi kanye nezinsimbi eziyisisekelo, kodwa lo msebenzi ulula kuphela uma isinki yakho isivele inomgodi wompompi ohlukile. Uma kungenjalo, udinga ukukhipha indawo yompompi owakhelwe ngaphakathi (ungabona idiski ephakanyisiwe kusinki yensimbi, noma uphawu kusinki yetshe elenziwe). Uma umgodi wokushaya ungekho, udinga ukubhoboza umgodi kusinki. Uma isinki yakho ifakiwe phansi, udinga futhi ukubhoboza umgodi ekhawunteni. Uma okwamanje une-dispenser yensipho, isikhala somoya kumshini wokuwasha izitsha, noma i-sprayer ephathwa ngesandla kusinki, ungayisusa bese uyifaka lapho.
Ngemva kokuhlola, sishintshe isihlungi se-Pur Pitcher esingasasebenzi ngesihlungi se-Faster Pour Pitcher.
Lo mhlahlandlela umayelana nohlobo oluthile lwesihlungi esingaphansi kwesinki: lezo ezisebenzisa isihlungi sekhatriji bese zithumela amanzi ahlungiwe empompini ehlukile. Lezi yizihlungi ezithandwa kakhulu ezingaphansi kwesinki. Zithatha isikhala esincane kakhulu futhi ngokuvamile kulula ukuzifaka nokuzinakekela. Zisebenzisa izinto ezifaka i-adsorbent—ngokuvamile ama-activated carbon kanye nama-ion exchange resins, njengezihlungi zethangi lamanzi—ukubopha nokuqeda ukungcola. Asikhulumi ngezihlungi, izinhlelo ze-reverse osmosis, noma ezinye izimbiza noma izihlinzeki ezifakwe kumathephu.
Ukuqinisekisa ukuthi sincoma kuphela izihlungi ezithembekile, besilokhu sigcizelela ukuthi ukukhetha kwethu kudlule isitifiketi esijwayelekile semboni: i-ANSI/NSF. I-American National Standards Institute kanye ne-NSF International yizinhlangano ezizimele ezingenzi nzuzo ezisebenzisana ne-EPA, abamele imboni, kanye nabanye ochwepheshe ukusungula amazinga aqinile ekhwalithi kanye nezinqubo zokuhlola izinkulungwane zemikhiqizo, kufaka phakathi izihlungi zamanzi. Amalabhorethri amabili amakhulu okuqinisekisa izihlanzi zamanzi yi-NSF International uqobo kanye ne-Water Quality Association (WQA). Zombili zivunyelwe ngokugcwele yi-ANSI kanye ne-Canadian Standards Council eNyakatho Melika, zingahlolwa ukuze ziqinisekiswe i-ANSI/NSF, futhi zombili kumele zihambisane nezindinganiso zokuhlola kanye nezinqubo ezifanayo. Isihlungi singahlangabezana kuphela nezindinganiso zesitifiketi ngemuva kokuthi sesidlule isikhathi eside sokuphila kwaso okulindelekile. Sebenzisa amasampula "ayinselele" alungisiwe, angcoliswe kakhulu kunamanzi amaningi ompompi.
Kulo mhlahlandlela, sigxila ezihlungini ezinezitifiketi ze-chlorine, i-lead, kanye ne-VOC (eyaziwa nangokuthi i-volatible organic compound).
Isitifiketi se-chlorine (ngaphansi kwe-ANSI/Standard 42) sibalulekile ngoba i-chlorine ivame ukuba yimbangela enkulu yamanzi ompompi “anganambitheki kahle”. Kodwa lokhu cishe kuyiqhinga: cishe zonke izinhlobo zezihlungi zamanzi seziphasile isitifiketi sazo.
Isitifiketi sokuhola kunzima ukusithola ngoba kusho ukunciphisa izixazululo ezicebile nge-lead ngamaphesenti angaphezu kuka-99%.
Isitifiketi se-VOC naso siyinselele ngoba kusho ukuthi isihlungi singasusa amakhemikhali angaphezu kuka-50 emvelo, okuhlanganisa nemithi eminingi evame ukusetshenziswa kanye nezinto ezisetshenziswa ezimbonini. Akuzona zonke izihlungi ezingaphansi kwesinki ezinezitifiketi ezimbili, ngakho-ke ngokugxila ezihlungini ezinezitifiketi ezimbili, sithole lezo ezisebenza kahle kakhulu.
Sinciphise usesho lwethu kakhulu futhi sakhetha izihlungi ezaziqinisekiswe ngaphansi kwe-ANSI/NSF Standard 401 entsha, ehlanganisa izinto ezingcolisayo ezivelayo, njengemithi, ezitholakala kakhulu emanzini aseMelika. Ngokufanayo, akuzona zonke izihlungi ezinesitifiketi se-401, ngakho izihlungi ezinaso (kanye nesitifiketi se-lead kanye ne-VOC) ziyiqembu elikhetha kakhulu.
Kulesi sigaba esiqinile, sibheka lezo ezinomthamo omncane wamagalani angu-500. Lokhu kulingana nokuphila kwesihlungi okungaba yizinyanga eziyisithupha ngaphansi kokusetshenziswa kakhulu (amagalani angu-2¾ ngosuku). Emindenini eminingi, lokhu kwanele ukuhlangabezana nezidingo zansuku zonke zokuphuza nokupheka. (Umenzi unikeza ishejuli yokushintsha isihlungi enconywayo, ngokuvamile ngezinyanga kunokuba kube ngamagalani; silandela lezi zincomo ekuhlolweni kwethu kanye nokubala izindleko. Sincoma njalo ukusebenzisa indawo yomkhiqizi wokuqala esikhundleni sesihlungi senkampani yangaphandle.)
Ekugcineni, silinganise izindleko zangaphambilini zesistimu yonke kanye nezindleko eziqhubekayo zokushintsha isihlungi. Asikabekanga umkhawulo wentengo ophansi noma ophezulu, kodwa ucwaningo lwethu lubonisa ukuthi yize izindleko zangaphambilini zisukela ku-US$100 kuya ku-US$1,250, kanti izindleko zesihlungi zisukela ku-US$60 kuya cishe ku-US$300, lo mehluko awuphezulu kakhulu. Imodeli ebiza kakhulu ezicacisweni. Sithole izinhlobo eziningana zezihlungi ezingaphansi kwesinki ezibiza kahle ngaphansi kuka-US$200, ngenkathi zinikeza isitifiketi esihle kakhulu kanye nokuphila isikhathi eside. Laba baba ngabaphumelele kowamanqamu. Ngaphezu kwalokho, sifuna futhi:
Ngesikhathi socwaningo, ngezinye izikhathi sihlangane nemibiko yokuvuza okubi kakhulu evela kumnikazi wesihlungi samanzi ngaphansi kwesinki. Njengoba isihlungi sixhunywe epayipini lokungena kwamanzi abandayo ngepayipi, uma isixhumi noma ipayipi liphukile, amanzi azophuma kuze kube yilapho ivalvu yokuvala ivaliwe - okusho ukuthi kungathatha amahora noma ngisho nezinsuku ukuthi uthole inkinga, okuzokunikeza imiphumela emibi kakhulu. Umonakalo wamanzi. Lokhu akuvamile, kodwa udinga ukulinganisa izingozi lapho ucabanga ukuthenga isihlungi ngaphansi kwesinki. Uma usithenga, sicela ulandele imiyalelo yokufaka ngokucophelela, uqaphele ukuthi ungaweli izintambo zesixhumi, bese uvula amanzi kancane kancane ukuze uhlole ukuvuza.
Isihlungi se-reverse osmosis noma i-R/O ekuqaleni sasisebenzisa uhlobo olufanayo lwesihlungi se-cartridge njengoba sikhethe lapha, kodwa sengeze indlela yesibili yokuhlunga i-reverse osmosis: ulwelwesi olunezimbobo ezincane oluvumela amanzi ukuthi adlule kodwa luhlunge amaminerali ancibilikisiwe. Izinto nezinye izinto.
Singaxoxa ngokujulile ngezihlungi ze-R/O eziqondisweni zesikhathi esizayo. Lapha, senqabe ngokuphelele. Uma kuqhathaniswa nezihlungi zokumunca, zinikeza izinzuzo ezilinganiselwe zokusebenza; zikhiqiza amanzi amaningi angcolile (ngokuvamile amalitha angu-4 amanzi “ahlanza” ngegaloni ngalinye lokuhlunga), kuyilapho izihlungi zokumunca azithathi indawo. Zinkulu kakhulu ngoba, ngokungafani nezihlungi zokumunca, zisebenzisa amathangi angamalitha angu-1 noma amalitha angu-2 ukugcina amanzi ahlungiwe; zihamba kancane kakhulu kunezihlungi zokumunca ngaphansi kwesinki.
Eminyakeni embalwa edlule, senze izivivinyo zelebhu ezihlungini zamanzi. Isiphetho esiyinhloko esisitholile ezivivinyweni ukuthi isitifiketi se-ANSI/NSF siyisilinganiso esithembekile sokusebenza kwezihlungi. Njengoba kunikezwe ubunzima obukhulu bokuhlolwa kwezitifiketi, lokhu akumangazi. Kusukela ngaleso sikhathi, sithembele esiqinisekisweni se-ANSI/NSF esikhundleni sokuhlolwa kwethu okulinganiselwe ukuze sikhethe abancintisana nathi.
Ngo-2018, sahlola uhlelo lokuhlunga amanzi oludumile lweBig Berkey, olwalungaqinisekiswanga yi-ANSI/NSF, kodwa lwathi luhlolwe kabanzi ngokuhambisana nezindinganiso ze-ANSI/NSF. Lokho okuhlangenwe nakho kwaqinisa kakhulu ukuphikelela kwethu ekuqinisekisweni kwe-ANSI/NSF kwangempela kanye nokungathembi kwethu isitatimende esithi “i-ANSI/NSF ehlolwe”.
Kusukela ngaleso sikhathi, kuhlanganise no-2019, izivivinyo zethu zigxile ekusebenziseni kwangempela kanye nezici ezahlukahlukene ezisebenzayo kanye nokushiyeka okuzobonakala uma usebenzisa le mikhiqizo.
I-Aquasana AQ-5200 ithole isitifiketi esingcolisa kakhulu, itholakala kabanzi, inentengo efanelekile, futhi inesakhiwo esincane. Yisistimu yokuqala yokuhlunga amanzi engaphansi kwethangi esiyifunayo.
Sikhethe i-Aquasana AQ-5200, eyaziwa nangokuthi i-Aquasana Claryum Dual-Stage. Kuze kube manje, isici sayo esibaluleke kakhulu ukuthi isihlungi sayo sithole isitifiketi se-ANSI/NSF esingcono kakhulu phakathi kwabancintisana nathi, okuhlanganisa i-chlorine, i-chloramine, i-lead, i-mercury, i-VOC, izinhlobo ezahlukene "zokungcola okuvelayo", kanye ne-perfluorooctanoic acid kanye ne-Perfluorooctane sulfonic acid. Ngaphezu kwalokho, i-faucet yayo kanye ne-plumbing hardware zenziwe ngensimbi eqinile, engcono kunepulasitiki esetshenziswa abanye abakhiqizi. Futhi lolu hlelo luncane kakhulu. Okokugcina, i-Aquasana AQ-5200 ingenye yemikhiqizo eyigugu kakhulu esiyitholile kusihlungi ngaphansi kwesinki. Izindleko ezikhokhelwa kusengaphambili zohlelo lonke (isihlungi, indlu, i-faucet kanye ne-hardware) ngokuvamile ziyi-US$140, kanti ezimbili ziyi-US$60. Shintsha isihlungi. Lokhu kungaphansi kwabancintisana abaningi abanezitifiketi ezibuthakathaka.
I-Aquasana AQ-5200 idlulile isitifiketi se-ANSI/NSF (PDF) futhi ingaphatha ukungcola okungu-77. Kanye ne-Aquasana AQ-5300+ efanayo eqinisekisiwe kanye ne-AO Smith AO-US-200, lokhu kwenza i-AQ-5200 ibe uhlelo lokuqinisekisa olunamandla kakhulu esilukhethile. (I-AO Smith yathenga i-Aquasana ngo-2016 futhi yamukela ubuchwepheshe bayo obuningi; i-AO Smith ayinazo izinhlelo zokuqeda uchungechunge lwe-Aquasana.) Ngokuphambene nalokho, i-Pur Pitcher Filter enhle kakhulu ene-Lead Reduction iqinisekiswe ku-23.
Lezi zitifiketi zifaka phakathi i-chlorine, esetshenziselwa ukubulala amagciwane ezindaweni zamanzi zikamasipala futhi iyimbangela eyinhloko yokunuka kwamanzi ompompi; i-lead, engakhishwa emapayipini amadala kanye ne-pipe solder; i-mercury; i-Cryptosporidium ephilayo kanye ne-Giardia, Amagciwane amabili angaba khona; i-chloramine iyisibulala-magciwane se-chloramine esiqhubekayo, esisetshenziswa kakhulu ezitshalweni zokuhlunga eningizimu ye-United States, lapho i-chlorine emsulwa izobola khona ngokushesha emanzini afudumele. I-Aquasana AQ-5200 iphinde yadlula isitifiketi se-"evelayo" engu-15, eyanda ezinhlelweni zokuphakelwa kwamanzi zomphakathi, okuhlanganisa i-bisphenol A, i-ibuprofen, kanye ne-estrone (i-estrogen esetshenziselwa ukuvimbela inzalo); Kwamakhemikhali asekelwe ku-PFOA kanye ne-PFOS-fluorine asetshenziselwa ukwenza izinto ezinganamatheli, futhi yathola iseluleko sezempilo se-EPA ngoFebhuwari 2019. (Ngesikhathi sokubonisana, abakhiqizi abathathu kuphela balolu hlobo lwesihlungi abathole isitifiketi se-PFOA/S, okwenza lokhu kuphawuleke kakhulu.) Iphinde yadlula isitifiketi se-VOC. Lokhu kusho ukuthi ingasusa ngempumelelo amakhemikhali e-organic angaphezu kwama-50 ahlukene, okuhlanganisa nezibulala-zinambuzane eziningi kanye nezinto ezibangela izimboni.
Ngaphezu kwama-resin e-activated carbon kanye nama-ion exchange (iningi, uma kungewona wonke, izihlungi ezingaphansi kwethangi zivamile), i-Aquasana isebenzisa ubuchwepheshe obubili bokuhlunga ukuze ithole isitifiketi. Kuma-chloramine, ingeza i-catalytic carbon, okuwuhlobo lwe-activated carbon olunezimbobo eziningi olukhiqizwa ngokwelapha i-carbon ngegesi eshisa kakhulu. Ku-Cryptosporidium kanye ne-Giardia, i-Aquasana yenza izihlungi ngokunciphisa usayizi we-pore ube yi-0.5 microns, okwanele ukuzibamba ngokomzimba.
Isitifiketi esihle kakhulu sesihlungi se-Aquasana AQ-5200 yisona sizathu esiyinhloko esenza sayikhetha. Kodwa ukwakheka kwayo nezinto zayo nakho kuyenza ibe yehlukile. Impompi yenziwe ngensimbi eqinile, kanye nesithako esinomumo we-T esixhumanisa isihlungi nepayipi. Abanye abancintisana nabo basebenzisa ipulasitiki kweyodwa noma ezimbili zazo, okunciphisa izindleko, kodwa kwandisa ingozi yokuqhekeka kwentambo kanye namaphutha okufakwa. I-AQ-5200 isebenzisa izithako zokucindezela ukuqinisekisa ukuvalwa okuqinile nokuphephile phakathi kwepayipi lakho nepayipi lepulasitiki elithwala amanzi liye kusihlungi nepayipi; abanye abancintisana nabo basebenzisa izithako ezilula zokucindezela, ezingaphephile kakhulu. Impompi ye-AQ-5200 itholakala ngeziqephu ezintathu (i-nickel ebhulashiwe, i-chrome epholishiwe kanye nethusi elinamafutha), futhi abanye abancintisana nabo abanakho ukukhetha.
Sithanda futhi i-compact form factor yesistimu ye-AQ-5200. Isebenzisa izihlungi ezimbili, ngasinye sazo sikhulu kancane kune-soda can; ezinye izihlungi, okuhlanganisa ne-Aquasana AQ-5300+ ngezansi, zilingana nebhodlela lelitha. Ngemva kokufaka isihlungi ebhodini lokufaka, ubukhulu be-AQ-5200 bungamasentimitha angu-9 ukuphakama, amasentimitha angu-8 ububanzi, namasentimitha angu-4 ukujula; i-Aquasana AQ-5300+ ingamasentimitha angu-13 x 12 x 4. Lokhu kusho ukuthi i-AQ-5200 ithatha isikhala esincane kakhulu kwikhabhinethi yesinki, ingafakwa endaweni encane engenakuhlalwa izinhlelo ezinkulu, futhi ishiya isikhala esengeziwe sokugcina ngaphansi kwesinki. Udinga cishe amasentimitha angu-11 esikhala esiqondile (esilinganiswa phansi kusukela phezulu kwesinki) ukuze uvumele isihlungi sishintshwe, kanye namasentimitha angu-9 esikhala esivundlile esingavimbeki odongeni lwekhabhinethi ukuze ufake isinki.
I-AQ-5200 ihlolwe kahle ngezihlungi zamanzi, inezinkanyezi ezingu-4.5 kwezingaphezu kuka-800 ezikuwebhusayithi ye-Aquasana (kwezinkanyezi ezinhlanu), kanye nezinkanyezi ezingu-4.5 kwezicishe zibe ngu-500 eziku-Home Depot.
Okokugcina, i-Aquasana AQ-5200 okwamanje ibiza cishe ama-US$140 kulo lonke uhlelo (ngokuvamile icishe ibe yi-US$100), kanti isethi yezihlungi zokufaka esikhundleni ibiza ama-US$60 (njalo ngemva kwezinyanga eziyisithupha zokufaka esikhundleni ingama-US$120 ngonyaka). I-Aquasana AQ- I-5200 ingenye yemikhiqizo ebaluleke kakhulu yabancintisana nathi, ishibhile ngamadola amaningi kunamanye amamodeli angaqinisekisiwe kakhulu. Idivayisi ifaka isibali sikhathi esizoqala ukukhala uma udinga ukushintsha isihlungi, kodwa sincoma ukuthi usethe nesikhumbuzi sekhalenda esiphindaphindayo efonini yakho. (Akunakwenzeka ukuthi usiphuthelwe.)
Uma kuqhathaniswa nabanye abancintisana nabo, i-Aquasana AQ-5200 inesilinganiso sokugeleza esiphezulu esiphansi (0.5 gpm vs. 0.72 noma ngaphezulu) kanye nomthamo ophansi (amagaloni angu-500 vs. 750 noma ngaphezulu). Lokhu kungumphumela oqondile wesihlungi sayo esincane ngokomzimba. Ngokuvamile, sikholelwa ukuthi la maphutha amancane ancishiswa ubuncane bayo. Uma wazi ukuthi ufuna ukugeleza okuphezulu kanye nomthamo, i-Aquasana AQ-5300+ inokugeleza okulinganiselwe okungu-0.72 gpm kanye namagaloni angu-800, kodwa ngesheduli efanayo yokushintsha isihlungi yezinyanga eziyisithupha, i-Aquasana Claryum Direct Connect inesilinganiso sokugeleza esifinyelela ku-1.5 gpm futhi Ilinganiswe kumagaloni angu-784 nezinyanga eziyisithupha.