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Utwuma tw’amazi twa Big Berkey dufite abayoboke benshi. Tumaze imyaka myinshi dukora ubushakashatsi ku ducupa tw’amazi twiza cyane ndetse n’utwuma tw’amazi turi munsi y’ibigega, kandi twabajijwe kenshi kuri Big Berkey. Uruganda rukora ryemeza ko iyi filter ishobora gukuraho imyanda myinshi kurusha izindi filter. Ariko, bitandukanye n’andi mahitamo yacu yo kuyungurura, Big Berkey ntabwo yemewe ku giti cyayo hakurikijwe amahame ya NSF/ANSI.
Nyuma y'amasaha 50 y'ubushakashatsi n'ibizamini byigenga bya laboratwari ku byavuzwe n'uruganda Big Berkey, ibisubizo byacu by'ibizamini, ndetse n'ibyavuye mu yindi laboratwari twaganiriye na yo ndetse n'indi laboratwari ya gatatu ifite ibisubizo biboneka ku mugaragaro, ntabwo bihuye neza. Twizera ko ibi byongera kugaragaza akamaro k'icyemezo cya NSF/ANSI: cyemerera abantu gufata ibyemezo byo kugura hashingiwe ku kugereranya imikorere y'amapera n'amapera. Byongeye kandi, kubera ko sisitemu ya Big Berkey ari nini, ihenze, kandi igoye kuyibungabunga kurusha utumashini duto duto n'utuyunguruzo, ntitwayigira inama nubwo yaba yemewe.
Sisitemu za Berkey zo ku meza hamwe n'amafiriti birahenze cyane kurusha ubundi buryo bwo kuyungurura amazi kandi biroroshye gukoresha. Ibisabwa n'abakora imikorere ntibihabwa icyemezo cyigenga cy'amategeko agenga igihugu.
New Millennium Concepts, uwakoze Big Berkey, avuga ko aka kayunguruzo gashobora gukuraho imyanda irenga ijana, ibi bikaba ari byinshi cyane kurusha utundi tuyunguruzo twasuzumye. Twagerageje ibi birego ku rugero ruto, kandi ibisubizo byacu ntibyari bihuye buri gihe n'ibyavuye muri laboratwari byatanzwe na New Millennium. By'umwihariko, ibyavuye muri laboratwari twatanze n'ibyavuye muri laboratwari New Millennium yari iherutse gutangwa byagaragaje ko kuyungurura chloroform bitari bifite akamaro nk'ikizamini cya gatatu cyabanje (cyanavuzwe mu nyandiko z'ibicuruzwa bya New Millennium).
Nta na kimwe mu bizamini twavuze hano (nta n'ibizamini byacu cyangwa ibizamini bya Envirotek cyangwa ibizamini bya New Millennium bya Laboratwari ya Los Angeles County) byujuje ubukana bw'ibizamini bya NSF/ANSI. By'umwihariko, NSF/ANSI yasabye ko ubwoko bw'akayunguruzo kakoreshejwe na Berkey bugomba kurenga inshuro ebyiri ubushobozi bw'akayunguruzo amazi yanduye apimirwamo mbere yo gupima. Nubwo ibizamini byose dukorana na New Millennium, uko tubizi, ari iby'ubuhanga kandi by'umwuga, buri kimwe gikoresha uburyo bwacyo, budasaba imbaraga nyinshi. Kubera ko nta na kimwe mu bizamini cyakozwe ku bipimo byuzuye bya NSF/ANSI, nta buryo busobanutse dufite bwo kugereranya neza ibyavuye mu isuzuma cyangwa kugereranya imikorere rusange ya kayunguruzo ya Burkey n'ibyo twagerageje mu bihe byashize.
Kimwe mu byo abantu bose bemeranyagaho ni ugukuramo icyuma gikozwe mu mazi yo kunywa, byagaragaje ko Big Berkey yakoze akazi keza ko gukuraho icyuma gikozwe mu mazi. Niba rero ufite ikibazo kizwi ku icyuma gikozwe mu mazi cyangwa ibindi byuma, byaba byiza urebye Big Berks nk'igipimo cy'agateganyo.
Uretse ingorane zo kugereranya ibyavuye muri laboratwari bivuguruzanya, New Millennium Concepts ntiyasubije ibyifuzo byinshi byo mu kiganiro kugira ngo tuganire ku byo twabonye. Muri rusange, raporo zacu ziduha ubumenyi budasobanutse neza ku buryo bwa Berkey, nk'uko bitari bimeze ku bandi bakora ibyuma biyungurura.
Ku bijyanye no kuyungurura amazi buri munsi, imashini nyinshi zemewe na NSF/ANSI zo mu mazi n’iziri munsi y’amazi ni nto, zoroshye kuzigura no kuzibungabunga, kandi zoroshye kuzikoresha. Zitanga kandi inshingano zijyanye no gupima amazi mu buryo bwigenga kandi busobanutse.
Ibuka ko inzira nyinshi z'amazi zo mu mujyi zifite umutekano, bityo keretse uzi ko hari ikibazo mu gace utuyemo, ushobora kudakenera kuyungurura kubera impamvu z'ubuzima. Niba kwitegura byihutirwa ari ikintu gihangayikishije cyane, tekereza ku nama zo mu buyobozi bwacu bwo kwitegura byihutirwa, burimo ibicuruzwa n'inama zo gukomeza kubona amazi meza.
Kuva mu 2016, nayoboye ubuyobozi bwacu ku byuma biyungurura amazi, harimo n'udupira n'udupira duto duto duto. John Holecek yahoze ari umushakashatsi wa NOAA, akaba yaradukoreye isuzuma ry'ubuziranenge bw'umwuka n'amazi kuva mu 2014. Yakoze ibisubizo by'ibizamini kandi yakoranye n'ama laboratwari yigenga mu izina rya Wirecutter kugira ngo yandike iyi nyandiko n'ubuyobozi ku byuma biyungurura amazi. EnviroMatrix Analytical yemewe na Minisiteri y'Ubuzima ya California kugira ngo ipime amazi yo kunywa buri gihe.
Sisitemu zo kuyungurura za Big Berkey n'izindi sisitemu zisa na zo za Alexapure na ProOne (yahoze ari Propur) zikunzwe cyane n'abantu bakoresha amazi yo mu iriba, ashobora kuba arimo imyanda yakurwaho n'inganda zitunganya amazi zo mu mujyi. Burkey kandi ifite abayoboke benshi mu bahanga mu kwitegura ibiza n'abashidikanya kuri leta. 1 Abacuruzi ba Berkey bamamaza izi sisitemu nk'ibikoresho by'umutekano mu gihe cy'impanuka, kandi hakurikijwe ingero zimwe bashobora gutanga amazi meza ku bantu bagera ku 170 ku munsi.
Impamvu iyo ari yo yose ituma ushishikajwe na Berkey cyangwa ubundi buryo bwose bwo kuyungurura amazi, tugomba gushimangira ko amazi menshi yo mu mujyi wa Leta Zunze Ubumwe za Amerika aba meza cyane. Nta filter ishobora gukuraho imyanda itaraboneka, bityo keretse niba ufite ikibazo kizwi, ushobora kutazongera gukenera filter na gato.
Abakoze Big Berkey bavuga ko igikoresho gishobora gukuraho imyanda irenga ijana (irenze iyindi filter ikoresha imbaraga rukuruzi twasuzumye). Kubera ko iyi filter idafite icyemezo cya NSF/ANSI (bitandukanye n'izindi filter zose twatanze mu zindi nyigisho), nta shingiro dufite ryo kuyigereranya n'izindi filter twagerageje mu bihe byashize. Bityo twahisemo gukora isuzuma ryigenga kugira ngo tugerageze kwigana bimwe muri ibi bisubizo.
Kugira ngo agerageze ibi bivugwa, kimwe n'ikizamini cya canister, John Holecek yateguye icyo yise "ibisubizo by'ibibazo" maze abinyuza muri sisitemu ya Big Berkey (ifite akayunguruzo k'umukara ka Berkey). Hanyuma yohereje ingero z'umuti n'amazi yayunguruwe kuri EnviroMatrix Analytical, laboratwari yigenga yemewe na Leta ya California, kugira ngo ikore isesengura. Kugira ngo akore ikizamini cya Big Burkey, yateguye ibisubizo bibiri: kimwe kirimo ingano nini y'icyuma cyashongeshejwe, ikindi kirimo chloroform. Bizatanga igitekerezo cy'ubushobozi rusange bw'akayunguruzo mu bijyanye n'ibyuma biremereye n'ibinyabutabire by'umwimerere.
John yateguye ingero zo kugenzura kugira ngo zihuze cyangwa zirenze urugero rw'ibintu byanduye byavuzwe mu cyemezo cya NSF/ANSI (150 µg/L kuri lisansi na 300 µg/L kuri chloroform). Nk’uko ikizamini cya Berkey cyabigaragaje (videwo), nyuma yo kwemeza ko akayunguruzo kashyizweho kandi gakora neza, yanyujije litiro imwe y'umuti wanduye muri Berkey maze ajugunya akayunguruzo (amazi n'ikindi kintu cyose cyanyuze muri akayunguruzo). Kugira ngo apime umuti wanduye, yayunguruye litiro ebyiri z'amazi muri Burkey, akuramo ingero imwe yo kugenzura muri litiro imwe, maze akusanya ingero ebyiri zo gusuzuma za filtrate. Ingero zo kugenzura no gusohora amazi zoherejwe muri EnviroMatrix Analytical kugira ngo zipimwe. Kubera ko chloroform ihindagurika cyane kandi "ishaka" kuva mu mwuka no guhumeka n'ibindi bintu biriho, John avanga chloroform mu muti wanduye mbere gato yo kuyungurura.
EnviroMatrix Analytical ikoresha gaz chromatography-mass spectrometry (GC-MS) kugira ngo ipime chloroform n'ibindi bintu byose bihinduka organic (cyangwa VOCs). Ingano y'ibice bya lead yapimwe hakoreshejwe inductively combined plasma mass spectrometry (ICP-MS) nk'uko EPA Method 200.8 ibivuga.
Ibisubizo bya EnviroMatrix Analytical bivuguruzanya kandi bishyigikira bimwe mu bivugwa na New Millennium. Berkey black filters ntabwo zigira ingaruka nziza mu gukuraho chloroform. Ku rundi ruhande, bikora akazi keza cyane ko kugabanya urwego rw'ubutare. (Reba igice gikurikira kugira ngo ubone ibisubizo byuzuye.)
Twasangije ibyavuye muri laboratwari yacu na Jamie Young, umuhanga mu bya shimi akaba n'umukoresha wa laboratwari yemewe yo gupima amazi muri New Jersey (icyo gihe yitwaga Envirotek) igenzurwa na New Millennium Concepts (uwaremye sisitemu ya Big Berkey) yashyizweho mu 2014. Isuzuma ryawe bwite. Iri ni filter ya Black Berkey. 2 Young yemeje ibyo twabonye akoresheje chloroform na lead.
Mu bihe byashize, New Millennium yatanze andi masuzuma, harimo n’ayo mu 2012 yakozwe na Los Angeles County Agricultural Commissioner/Ishami rishinzwe ibiro n’ibipimo muri Laboratwari y’uburozi ku bidukikije; muri iyi raporo, chloroform (PDF) koko iri ku rutonde rwa Black Berkey hakurikijwe amahame y’ishami (EPA, ntabwo ari kimwe mu bintu byandujwe na NSF/ANSI). Nyuma yo gupima mu 2012, imirimo yo gupima uburozi yimuriwe mu Ishami ry’Ubuzima Rusange rya Los Angeles. Twavuganye na DPH maze bemeza ko raporo y’umwimerere ari yo. Ariko New Millennium yavuze ko ibizamini bya Young ari "icyiciro giheruka" kandi ibisubizo bye ni byo biheruka ku rutonde rwa Birkey Water Knowledge Base, New Millennium ikomeza kugaragaza ibisubizo by’ibizamini no gusubiza ibibazo bikunze kubazwa ku rubuga rwigenga.
Uburyo bwo gupima bwa Wirecutter, Young na Los Angeles County burahindagurika. Kandi kubera ko nta na kimwe muri byo cyujuje ibisabwa na NSF/ANSI, nta shingiro dufite ryo kugereranya ibyavuye mu bushakashatsi.
Bityo, igitekerezo cyacu muri rusange kuri sisitemu ya Big Berkey ntigishingiye cyane ku bisubizo by'ibizamini byacu. Big Berkey yoroshye kuyikoresha kandi ihendutse ku buryo dusaba abasomyi benshi gukoresha akayunguruzo gasanzwe gakoresha imbaraga zikabije, nubwo Berkey ikora byose New Millennium ivuga ko ishobora gukora nk'akayunguruzo.
Twanafunguye utuyunguruzo tubiri twa Black Berkey kugira ngo turebe uko twakozwe kandi tubone ibimenyetso bigaragaza ko turimo "nibura" ibintu bitandatu bitandukanye bya filter, nk'uko ishami rya Berkey ribivuga. Twasanze nubwo filter ya Berkey ari nini kandi ikomeye kurusha filter za Brita na 3M Filtrete, bisa nkaho bifite uburyo bumwe bwo kuyungurura: carbon activated ivanze na resin ya ion exchange.
Uburyo bwo kuyungurura bwa Berkey buri mu cyiciro kinini cy’amafiriti akoreshwa n’imbaraga rukuruzi. Ibi bikoresho byoroshye bikoresha imbaraga rukuruzi mu gukurura amazi ava mu cyumba cyo hejuru binyuze mu kayunguruzo gato k’urushundura; amazi ayunguruye akusanywa mu cyumba cyo hasi kandi ashobora gukwirakwizwa aho ngaho. Ubu ni uburyo bwiza kandi bukoreshwa cyane, aho amafiriti y’ibicaniro ari urugero rusanzwe.
Utwuma twa Berkey dufite akamaro kanini mu kuvura amazi yo kunywa yanduye lisansi. Mu igerageza ryacu, twagabanyije urugero rw'isansi kuva kuri 170 µg/L kugera kuri 0.12 µg/L gusa, ibi bikaba birenga cyane ibisabwa na NSF/ANSI byo kugabanya urugero rw'isansi kuva kuri 150 µg/L kugera kuri 10 µg/L cyangwa munsi yayo.
Ariko mu bizamini byacu bya chloroform, akayunguruzo ka Black Berkey kakoze nabi, kagabanya ingano ya chloroform mu gipimo cy’ikizamini ho 13% gusa, kuva kuri 150 µg/L kugeza kuri 130 µg/L. NSF/ANSI isaba kugabanukaho 95% kuva kuri 300 µg/L kugera kuri 15 µg/L cyangwa munsi yayo. (Igisubizo cyacu cyateguwe ku gipimo cya NSF/ANSI cya 300 µg/L, ariko guhinduka kwa chloroform bivuze ko ikora vuba ibintu bishya cyangwa igashonga, bityo ingano yayo ikagabanuka ikagera kuri 150 µg/L iyo igeragezwa. Ariko ikizamini cya EnviroMatrix Analytical nacyo gifata (ibindi bintu bihindagurika organic chloroform ishobora gukora, bityo twizera ko ibisubizo ari ukuri.) Jamie Young, injeniyeri wemewe wo muri New Jersey wakoze ikizamini giheruka cya New Millennium Concepts, na we yakoze nabi chloroform yo muri Black Berkey filter.
Ariko, New Millennium Concepts ivuga ku gasanduku k’urufunguzo ko urufunguzo rwa Black Berkey rugabanya chloroforme ho 99.8% kugeza "munsi y’aho ubushakashatsi bushobora kugaragara." (Iyi mibare isa nkaho ishingiye ku bisubizo byakozwe na Laboratwari ya Los Angeles County mu 2012. Ibisubizo by’ibizamini [PDF] biraboneka mu ishami ry’ubumenyi rya Berkey Water, rihujwe n’urubuga rwa Berkey (ariko atari igice cyarwo).)
Kugira ngo bisobanuke neza, twe, Envirotek, cyangwa Los Angeles County, nta numwe muri twe wigeze akurikiza amabwiriza yose ya NSF/ANSI Standard 53 yakoreshejwe mu kuyungurura imbaraga nk'uko byagaragajwe na Black Berkey.
Ku ruhande rwacu, twakoze ikizamini cya laboratwari nyuma y’uko Black Berkeys iyunguruye litiro nyinshi z’umuti wateguwe ugana ku gipimo cya NSF/ANSI. Ariko icyemezo cya NSF/ANSI gisaba ko ibyuma bikoresha imbaraga z’uburemere bihangana n’ubushobozi bwabyo bwo gutemba inshuro ebyiri mbere yo kubigerageza. Kuri Black Berkey filter, bivuze litiro 6.000.
Kimwe natwe, Jamie Young yateguye igisubizo cy’igerageza hakurikijwe NSF/ANSI Standard 53, ariko ntiyanyuze muri gahunda yose ya Standard 53, yasabaga litiro 6.000 z’umuti wanduye wakoreshejwe na Black Berries kugira ngo unyure muri filter. Yavuze ko mu bizamini bye, filter yanakoze neza hamwe na lisansi, ibyo bikaba byemeza ibyo twabonye. Ariko, yavuze ko batacyujuje ibisabwa na NSF nyuma yo kuyungurura litiro zigera ku 1.100 - kimwe cya gatatu cy’imashini za New Millennium zavuze ko zigomba kumara litiro 3.000 kuri filter za Black Berkey.
Akarere ka Los Angeles gakurikiza amabwiriza atandukanye ya EPA aho icyitegererezo kimwe cya litiro 2 gusa cy’icyitegererezo kinyura muri aka gasanduku. Bitandukanye na twe na Young, akarere kasanze aka gasanduku ka Black Berkey kakuyemo chloroform kugira ngo kagere ku bipimo ngenderwaho, muri iki gihe kari hejuru ya 99.8%, kakava kuri 250 µg/L kakagera munsi ya 0.5 µg/L.
Ibisubizo bidahuye byavuye mu isuzuma ryacu ugereranije n’ibyavuye muri laboratwari ebyiri zashyizweho na Burkey bituma tutinyuka gutanga inama kuri iyi filter, cyane cyane iyo ushobora kubona andi mahitamo yemewe n’abikorera ku giti cyabo asubiza ibi bibazo byose bifunguye.
Muri rusange, ubunararibonye bwacu mu isuzuma bushyigikira aho duhagaze: turasaba abayungurura amazi bafite icyemezo cya NSF/ANSI, mu gihe Berkey idafite icyemezo nk'icyo. Ibi biterwa nuko amahame y’isuzuma rya NSF/ANSI ari akaze cyane kandi asobanutse: umuntu wese ashobora kuyasoma ku rubuga rwa NSF. Laboratwari zigenga zemerewe gupima icyemezo cya NSF/ANSI ubwazo zemewe cyane. Ubwo twandikaga kuri iyi nyandiko, twaganiriye na NSF maze tumenya ko byatwara arenga miliyoni imwe y’amadolari kugira ngo hakorwe isuzuma ry’isuzuma ry’ibintu byose New Millennium Concepts ivuga ko akayungurura ka Black Berkey kavanwaho. New Millennium yavuze ko yemera ko icyemezo cya NSF kidakenewe, ivuga ko ikindi gituma itarakora isuzuma ari indi mpamvu itarakora isuzuma.
Nubwo imikorere yo kuyungurura amazi yaba iri henshi, hari ibibazo byinshi kuri iyi filter ku buryo byoroshye ko twakugira inama imwe mu zindi filter zacu z'amazi mbere yo gutanga inama kuri Big Berkey. Ubwa mbere, sisitemu ya Berkey irahenze cyane kuyigura no kuyibungabunga kurusha filter iyo ari yo yose twakugira inama. Bitandukanye na filters twakugira inama, Berkey ni nini kandi irashishikaje. Yagenewe gushyirwa ku meza. Ariko kubera ko ifite uburebure bwa santimetero 19, ntabwo ikwira munsi y'utubati twinshi two ku nkuta, dukunze gushyirwaho santimetero 18 hejuru y'aho ushyira. Berkey nayo ni ndende cyane ku buryo itakwira muri frigo nyinshi. Muri ubu buryo, ntabwo ushobora gukomeza amazi muri Berkey akonje (ibyo byoroshye kubikora ukoresheje filter y'umusare wacu). New Millennium Concepts itanga bracket ya santimetero 5 kugira ngo byoroshye gushyiramo indorerwamo munsi y'umuyoboro wa Big Berkey, ariko izi brackets zirahenda cyane kandi zikongera uburebure ku kintu kimaze kuba kirekire.
Umwanditsi wa Wirecutter wigeze gutunga Big Berkey yanditse ku byamubayeho agira ati: “Uretse kuba igikoresho ari kinini cyane, ikigega cyo hejuru gishobora kuzura byoroshye niba wibagiwe gusohora ikigega cyo hasi. Kiremereye gato kandi kinini kandi gitangira kuyungurura ako kanya. Bityo rero ugomba kugiterura kugira ngo ubone umwanya wa filter ya karuboni (ni ndende kandi idakomeye) hanyuma ukagishyira mu gikarabiro cyo hasi mbere yuko gitangira kuvomera hasi cyangwa ku gikarabiro.”
Undi muyobozi wa Wirecutter yari afite Big Berkey (ifite akayunguruzo k’ibumba gashobora gusimburwa n’ak’ikigo) ariko yahise ahagarika kuyikoresha. Yagize ati: “Yari impano y’uwo twashakanye kuko nayibonye mu rugo rw’inshuti yanjye maze ntekereza ko amazi yasohokaga yari meza cyane.” “Kubana na yo byari bitandukanye rwose. Ahantu ho ku meza, haba mu buryo butambitse no mu buryo buhagaze, hari hanini kandi hatagoye. Kandi sinki yo mu gikoni twabagamo yari nto cyane ku buryo byari bigoye kuyisukura.”
Tunabona kandi ba nyir'inzu benshi binubira ikura ry'ibimera by'urumogi na bagiteri, kandi akenshi, amacandwe muri Great Berkies zabo. New Millenium Concepts yemera iki kibazo kandi isaba ko hongerwamo Berkey Biofilm Drops mu mazi yayunguruwe. Iki ni ikibazo gikomeye ku buryo abacuruzi benshi ba Berkey bagihaye urupapuro rwose.
Abacuruzi benshi bemera ko gukura kwa bagiteri bishobora kuba ikibazo, ariko akenshi bavuga ko bizagaragara nyuma y'imyaka mike ikoreshwa, ariko si ko bimeze ku banditsi bacu. Yagize ati: “Byatangiye mu gihe kitarenze umwaka. Amazi araryoha cyane, kandi icyumba cyo hejuru n'icyo hasi gitangira kunuka nabi. Ndayasukura neza, nkasukura ibyuma nkabikuraho kugira ngo ngere ku duce duto twose duhuza, kandi nemeza ko nogeje imbere muri robine. Mu minsi ibiri cyangwa itatu. Nyuma y'iminsi mike impumuro y'amazi yabaye nk'isanzwe hanyuma yongera kuba nk'umukungugu. Naje guhagarika Birki numva mbabaye.”
Kugira ngo ukureho burundu algae na bagiteri slime muri filter ya Black Berkey, sukura ubuso ukoresheje Scotch-Brite, ukore nk'ibyo ku bigega byo hejuru n'ibyo hasi, hanyuma unyuremo umuti wa bleach muri filter. Bisaba kubungabunga cyane ikintu cyagenewe gutuma abantu bumva bafite umutekano ku mazi yabo.
Niba ushishikajwe no kwitegura ibiza kandi ukaba ushaka kwemeza ko ufite amazi meza mu gihe cy’impanuka, turakugira inama yo gukoresha ibikoresho byo kubika amazi biri mu gitabo cyacu cy’amabwiriza yo kwitegura mu bihe by’impanuka. Niba ushaka gusa akayunguruzo keza k’amazi yo mu robine, turakugira inama yo gushaka akayunguruzo kemejwe na NSF/ANSI, nk’abayobozi bacu b’amacupa meza y’amazi n’akayunguruzo keza k’amazi munsi y’amazi.
Inyinshi mu mashini ziyungurura imbaraga zikoresha ibikoresho bibiri bitandukanye kugira ngo zikureho imyanda mu mazi. Karuboni ikora inyunganiramirire cyangwa ifata ibintu bikomoka ku bimera, harimo ibicanwa n'imiti ikomoka kuri peteroli, imiti myinshi yica udukoko n'imiti myinshi. Resine zihinduranya iyoni zikuramo ibyuma byinshi byashongeshejwe mu mazi, zigasimbuza ibyuma biremereye byangiza (nk'uburozi bw'inkwi, mercure na cadmium) hamwe n'ibyuma biremereye byoroshye, cyane cyane bitangiza (nk'umunyu wo ku meza).
Amahitamo yacu y’amafiriti yo mu bwoko bwa pitcher (yo muri Brita) n’ayo munsi y’amazi (yo muri 3M Filtrete) yakozwe muri ubu buryo. New Millennium Concepts ntabwo igaragaza icyo firiti ya Black Berkey ikozemo, ariko abacuruzi benshi bavuga imiterere yayo, barimo TheBerkey.com: “Ikintu cyacu cyo kuyungurura cya Black Berkey gikozwe mu ruvange rw’ibintu birenga bitandatu bitandukanye. Iyi formula igizwe n’ubwoko butandukanye, harimo na karuboni y’ikirahure cy’ikoko cya karuboni cyiza cyane, byose biri mu gice gito cyane kirimo imyenge ya za miriyoni z’udusimba duto cyane.” Iyo dukataga mu mafiriti abiri ya Black Berkey, yari agizwe na iyoni zirimo utubumbe twa karuboni twakoreshejwe duhinduranya resin. Jamie Young yemeza iki gitekerezo.
Tim Heffernan ni umwanditsi mukuru wibanda ku bwiza bw'umwuka n'amazi ndetse no gukoresha neza ingufu zo mu rugo. Yahoze atangaza ikinyamakuru The Atlantic, Popular Mechanics n'ibindi binyamakuru byo mu gihugu, yinjiye muri Wirecutter mu 2015. Afite amagare atatu n'ibikoresho nta gikoresho.
Izi filtre z'amazi, imiyoboro n'ibikoresho byo kunyweramo amazi byemewe gukuraho imyanda no kunoza ubwiza bw'amazi yo kunywa mu rugo rwawe.
Nyuma yo kugerageza amasoko 13 y'amazi y'amatungo (no kuyahinduramo rimwe ry'igikinisho cyo kurisha), twasanze isoko ry'indabyo z'injangwe ari ryo ryiza ku njangwe nyinshi (ndetse na zimwe mu mbwa).
Wirecutter ni serivisi yo gutanga inama ku bicuruzwa bya The New York Times. Abanyamakuru bacu bahuza ubushakashatsi bwigenga n'ibizamini bikomeye (rimwe na rimwe) kugira ngo bigufashe gufata icyemezo cyo kugura vuba kandi neza. Waba ushaka ibicuruzwa byiza cyangwa ushaka inama zingirakamaro, tuzagufasha kubona ibisubizo nyabyo (ku nshuro ya mbere).