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Zosefera zamadzi zazikulu za Berkey zili ndi gulu lachipembedzo. Takhala tikufufuza mitsuko yabwino kwambiri yosefera madzi ndi zosefera zabwino kwambiri pansi pa sinki kwazaka zambiri, ndipo takhala tikufunsidwa za Big Berkey nthawi zambiri. Wopanga amati fyuluta iyi imatha kuchotsa zonyansa zambiri kuposa zosefera zina. Komabe, mosiyana ndi zosankha zathu zina zosefera, Big Berkey siyimatsimikiziridwa paokha pamiyezo ya NSF/ANSI.
Pambuyo pakufufuza kwa maola 50 komanso kuyesa kwa labotale pazifukwa za wopanga Big Berkey, zotsatira za mayeso athu, komanso zotsatira za labu ina yomwe tidayankhulana nayo komanso labu yachitatu yomwe zotsatira zake zimapezeka poyera, sizikugwirizana kwathunthu. Tikukhulupirira kuti izi zikuwonetsanso kufunikira kwa satifiketi ya NSF/ANSI: imalola anthu kupanga zisankho zogula potengera kufananizira kodalirika kwa maapulo ndi maapulo. Kuphatikiza apo, popeza makina a Big Berkey ndi okulirapo, okwera mtengo, komanso ovuta kuwasamalira kuposa mitsuko ndi zosefera zapansi panthaka, sitingavomereze ngakhale zitatsimikiziridwa.
Makina a Berkey countertop ndi zosefera ndizokwera mtengo kwambiri kuposa njira zina zosefera madzi ndipo ndizosavuta kugwiritsa ntchito. Zomwe opanga amapanga sizimatsimikiziridwa paokha malinga ndi miyezo ya dziko.
New Millennium Concepts, wopanga Big Berkey, akuti fyulutayo imatha kuchotsa zonyansa zopitilira zana, zomwe ndi zochuluka kuposa zosefera zina zokoka zomwe taziwona kale. Tinayesa zonenazi pamlingo wochepa, ndipo zotsatira zathu sizinali zogwirizana nthawi zonse ndi zotsatira za labotale zomwe zidaperekedwa ndi New Millennium. Makamaka, zotsatira zochokera ku labotale yomwe tidatumiza komanso ku labotale ya New Millennium yomwe tidapangana posachedwa idawonetsa kuti kusefera kwa chloroform sikunali kothandiza ngati kuyesa kwachitatu koyambirira (komwe kudanenedwanso m'mabuku a New Millennium).
Palibe kuyesa komwe tikunena pano (kuyesa kwathu kapena kuyesa kwa Envirotek kapena kuyesa kwa New Millennium contract ya Los Angeles County Laboratory) komwe kumakumana ndi zovuta zoyesa za NSF/ANSI. Makamaka, NSF/ANSI inkafuna kuti mtundu wa fyuluta yogwiritsidwa ntchito ndi Berkey uyenera kudutsa kuwirikiza kawiri kuchuluka kwa sefa yomwe madzi onyansa amayezedwa asanayezedwe. Ngakhale kuti mayesero onse omwe timapangana ndi New Millennium ali, monga momwe tikudziwira, mokwanira komanso mwaukadaulo, iliyonse imagwiritsa ntchito njira yakeyake, yosavutikira kwambiri. Popeza kuti palibe mayesero omwe adachitidwa pamiyezo yonse ya NSF / ANSI, tilibe njira yodziwikiratu yofananizira molondola zotsatira kapena kufananiza ntchito yonse ya fyuluta ya Burkey ndi zomwe taziyesa m'mbuyomu.
Mbali ina imene aliyense anavomereza inali kuchotsa mtovu m’madzi akumwa, zimene zinasonyeza kuti Big Berkey anachita ntchito yabwino yochotsa zitsulo zolemera. Chifukwa chake ngati muli ndi vuto lodziwika ndi lead kapena zitsulo zina m'madzi anu, kungakhale koyenera kuyang'ana mu Big Berks ngati muyeso kwakanthawi.
Kuphatikiza pazovuta zofananiza zotsatira zotsutsana za labotale, New Millennium Concepts sanayankhe zopempha zambiri zofunsa mafunso kuti tikambirane zomwe tapeza. Ponseponse, malipoti athu amatipatsa kumvetsetsa bwino kwa machitidwe a Berkey, zomwe sizili choncho ndi opanga ena ambiri.
Posefera madzi tsiku ndi tsiku, mitsuko yambiri yovomerezeka ya NSF/ANSI ndi zosefera zapansi panthaka ndizochepa, zosavuta, zotsika mtengo kugula ndi kukonza, komanso zosavuta kugwiritsa ntchito. Amaperekanso udindo wokhudzana ndi kuyesa kodziyimira pawokha komanso kowonekera.
Kumbukirani kuti machitidwe ambiri amadzi am'tauni ndi otetezeka, kotero pokhapokha mutadziwa kuti pali vuto kwanuko, mwina simudzafunika kusefera pazifukwa zaumoyo. Ngati kukonzekera kwadzidzidzi kukukudetsani nkhawa kwambiri, lingalirani maupangiri athu okonzekera ngozi, omwe ali ndi zinthu ndi malangizo osungira madzi aukhondo kupezeka.
Kuyambira 2016, ndakhala ndikuyang'anira kalozera wathu wazosefera zamadzi, kuphatikiza mitsuko ndi masinki apansi. John Holecek ndi wofufuza wakale wa NOAA yemwe wakhala akuyesa kuyesa kwa mpweya ndi madzi kwa ife kuyambira 2014. Anapanga mayankho oyesa ndikugwira ntchito ndi ma laboratory odziimira m'malo mwa Wirecutter kuti alembe bukhuli ndi kalozera wa fyuluta wa pitcher. EnviroMatrix Analytical ndi yovomerezeka ndi dipatimenti ya California ya Public Health kuyesa madzi akumwa pafupipafupi.
Makina osefera a Big Berkey ndi machitidwe ofanana kuchokera ku Alexapure ndi ProOne (omwe kale anali Propur) ndi otchuka pakati pa anthu omwe amadalira madzi amadzi, omwe angakhale ndi zonyansa zomwe zingachotsedwe ndi malo opangira madzi a tauni. Burkey alinso ndi otsatira ambiri pakati pa akatswiri okonzekera masoka komanso okayikira boma. 1 Ogulitsa ku Berkey amatsatsa makinawa ngati zida zotetezera mwadzidzidzi, ndipo kuyerekeza kwina atha kupereka madzi akumwa osefedwa kwa anthu 170 patsiku.
Kaya muli ndi chifukwa chotani chomwe mumakonda Berkey kapena njira ina iliyonse yosefera madzi, tiyenera kutsindika kuti madzi ambiri amtawuni ku United States ndi oyera kwambiri poyambira. Palibe fyuluta yomwe ingachotse zonyansa zomwe sizilipo kale, kotero pokhapokha ngati muli ndi vuto lodziwika, mwina simudzasowa zosefera.
Opanga Big Berkey amati chipangizochi chitha kuchotsa zowononga zana (zochuluka kuposa fyuluta ina iliyonse yokoka yomwe takambirana). Popeza kuti fyulutayi sinatsimikizidwe ndi NSF/ANSI (mosiyana ndi zosefera zina zonse zomwe timalimbikitsa m'mabuku ena), tilibe maziko olimba oti tifananize ndi zosefera zina zomwe tidaziyesa m'mbuyomu. Chifukwa chake tidaganiza zopanga mayeso odziyimira pawokha kuyesa kutengera zina mwazotsatirazi.
Kuti ayese zonenazi, monga momwe amayezera chitini, John Holecek adakonza zomwe adazitcha "mayankho amavuto" ndikuyendetsa kudzera mu Big Berkey system (yokhala ndi fyuluta ya Black Berkey). Kenako adatumiza zitsanzo za yankho ndi madzi osefa ku EnviroMatrix Analytical, labotale yodziyimira payokha yovomerezeka ndi State of California, kuti iunike. Kuti ayesetse Big Burkey, adakonza njira ziwiri: imodzi yomwe inali ndi mtovu wambiri wosungunuka, ndipo inayo inali ndi chloroform. Apereka lingaliro lakuchita bwino kwa fyulutayo pokhudzana ndi zitsulo zolemera ndi ma organic compounds.
John adakonza zitsanzo zowongolera kuti zikwaniritse kapena kupitilira kuchuluka kwa zoyipa zomwe zafotokozedwa mu certification ya NSF/ANSI (150 µg/L ya lead ndi 300 µg/L ya chloroform). Malinga ndi mayeso a utoto wa Berkey (kanema), atatsimikizira kuti fyulutayo idayikidwa ndikugwira ntchito moyenera, adathamangitsa galoni yankho loipitsidwa kudzera mu Berkey ndikutaya filtrate (madzi ndi china chilichonse chomwe chidadutsa fyuluta). Kuti ayese yankho loipitsidwa, adasefa magaloni awiri amadzimadzi kudzera ku Burkey, kuchotsa chitsanzo chowongolera pa galoni yachiwiri, ndikusonkhanitsa zitsanzo ziwiri zoyesa za filtrate kuchokera mmenemo. Zitsanzo zowongolera ndi zowonongeka zidatumizidwa ku EnviroMatrix Analytical kuti akayesedwe. Chifukwa chloroform imakhala yosasunthika kwambiri ndipo "imafuna" kuti isungunuke ndikuphatikizana ndi zinthu zina zomwe zilipo, John amasakaniza chloroform munjira yoipitsitsa asanasefe.
EnviroMatrix Analytical imagwiritsa ntchito gas chromatography-mass spectrometry (GC-MS) kuyeza chloroform ndi mankhwala ena aliwonse osasunthika (kapena ma VOC). Zomwe zimatsogolera zidayezedwa pogwiritsa ntchito inductively plasma mass spectrometry (ICP-MS) malinga ndi EPA Method 200.8.
Zotsatira za EnviroMatrix Analytical zimatsutsana pang'ono ndikuthandizira zonena za New Millennium. Zosefera zakuda za Berkey sizigwira ntchito pochotsa chloroform. Kumbali ina, amagwira ntchito yabwino kwambiri yochepetsera mtovu. (Onani gawo lotsatira kuti mupeze zotsatira zonse.)
Tinagawana zotsatira za labu ndi Jamie Young, katswiri wa zamankhwala ndi mwiniwake/wogwiritsa ntchito labotale yoyezetsa madzi yovomerezeka ku New Jersey (yomwe nthawiyo inkadziwika kuti Envirotek) yoyendetsedwa ndi New Millennium Concepts (wopanga Big Berkey system) yotumizidwa mu 2014. kuyesa kwanu. Ichi ndi fyuluta ya Black Berkey. 2 Achinyamata adatsimikizira zomwe tapeza ndi chloroform ndi lead.
New Millennium yapereka mayesero ena m'mbuyomu, kuphatikizapo imodzi mu 2012 yochitidwa ndi Los Angeles County Agricultural Commissioner / Department of Weights and Measures Environmental Toxicology Laboratory; mu lipoti ili, chloroform (PDF) adalembedwadi Black Berkey malinga ndi miyezo ya dipatimenti (EPA, osati imodzi mwa zonyansa zomwe zachotsedwa ndi NSF/ANSI). Pambuyo poyesedwa mu 2012, ntchito ya toxicology idasamutsidwa ku Los Angeles Department of Public Health. Tidalumikizana ndi a DPH ndipo adatsimikiza kuti lipoti loyambirira linali lolondola. Koma New Millennium idafotokoza kuyesa kwa Young ngati "mzere waposachedwa" ndipo zotsatira zake ndizomwe zalembedwa posachedwa mu Birkey Water Knowledge Base, yomwe New Millennium imasunga kulembetsa zotsatira za mayeso ndikuyankha mafunso omwe amafunsidwa pafupipafupi patsamba lodziyimira pawokha.
Njira zoyesera za Wirecutter, Young ndi Los Angeles County ndizosagwirizana. Ndipo popeza palibe m'modzi mwa iwo amene amakwaniritsa miyezo ya NSF/ANSI, tilibe maziko ofananira zotsatira.
Choncho, maganizo athu onse a Big Berkey dongosolo sizidalira kwambiri zotsatira za mayesero athu. The Big Berkey ndiyosavuta kugwiritsa ntchito komanso yotsika mtengo kotero kuti tikupangira fyuluta yanthawi zonse yamphamvu yokoka kwa owerenga ambiri, ngakhale Berkey imachita chilichonse New Millennium imati ingachite ngati fyuluta.
Tidatsegulanso zosefera zingapo za Black Berkey kuti tiwone momwe zimapangidwira ndikupeza umboni kuti zili ndi "zosefera zosachepera" zisanu ndi chimodzi, monga momwe dipatimenti yotsatsa ya Berkey imanenera. Tidapeza kuti ngakhale fyuluta ya Berkey ndi yayikulu komanso yowonda kuposa zosefera za Brita ndi 3M Filtrete, zikuwoneka kuti zili ndi njira yofananira yosefera: mpweya wolowetsedwa wolowetsedwa ndi utomoni wosinthanitsa ndi ayoni.
Makina osefa a Berkey amagwera m'gulu lalikulu la zosefera zodyetsedwa ndi mphamvu yokoka. Zida zosavuta izi zimagwiritsa ntchito mphamvu yokoka kuti zikoke madzi kuchokera m'chipinda chapamwamba kupyolera mu fyuluta ya mesh yabwino; madzi osefa amasonkhanitsidwa m'chipinda chapansi ndipo akhoza kugawidwa kuchokera kumeneko. Iyi ndi njira yothandiza komanso yogwiritsidwa ntchito kwambiri, yomwe zosefera za canister ndi chitsanzo chofala.
Zosefera za Berkey ndizothandiza kwambiri pochiza madzi akumwa omwe ali ndi mtovu. Pakuyesa kwathu, adachepetsa milingo yotsogolera kuchokera ku 170 µg/L kupita ku 0.12 µg/L yokha, yomwe imaposa zomwe NSF/ANSI certification zimafuna kuchepetsa mayendedwe kuchokera ku 150 µg/L mpaka 10 µg/L kapena kutsika.
Koma m'mayesero athu ndi chloroform, fyuluta ya Black Berkey sinachite bwino, kuchepetsa chloroform zomwe zili muzoyeserera ndi 13% yokha, kuchoka pa 150 µg/L mpaka 130 µg/L. NSF/ANSI imafuna kuchepetsa 95% kuchoka pa 300 µg/L kufika pa 15 µg/L kapena kuchepera. (Yankho lathu loyesa lidakonzedweratu ku NSF/ANSI muyezo wa 300 µg/L, koma kusakhazikika kwa chloroform kumatanthauza kuti imapanga mankhwala atsopano kapena amasanduka nthunzi, motero ndende yake imatsika mpaka 150 µg/L ikayesedwa. Koma mayeso a EnviroMatrix Analytical nawonso kujambula (mankhwala ena osakhazikika omwe chloroform amatha kupanga, ndiye tikukhulupirira kuti zotsatira zake ndi zolondola.) Jamie Young, yemwe ali ndi chilolezo injiniya woyezera madzi wochokera ku New Jersey yemwe adayesa mayeso aposachedwa a New Millennium Concepts, adachitanso bwino ndi chloroform yochokera ku Black Berkey fyuluta.
Komabe, New Millennium Concepts pa bokosi la fyuluta imati fyuluta ya Black Berkey imachepetsa chloroform ndi 99.8% kukhala "pansi pa malire ozindikirika a labotale." (Nambalayi ikuwoneka kuti imachokera ku zotsatira za mayeso opangidwa ndi Los Angeles County Laboratory mu 2012. Zotsatira za mayeso [PDF] zilipo mu Berkey Water chidziwitso maziko, olumikizidwa ku (koma osati mbali) malo aakulu Berkey.)
Kunena zomveka, ife, Envirotek, kapena Los Angeles County sitinafotokoze ndondomeko yonse ya NSF/ANSI Standard 53 yomwe imagwiritsidwa ntchito popanga zosefera zamphamvu yokoka monga Black Berkey.
Kwa ife, tidachita mayeso a labotale pambuyo poti a Black Berkeys asefa magaloni angapo a yankho lokonzekera ku NSF/ANSI reference concentration. Koma chiphaso cha NSF/ANSI chimafuna zosefera zodyetsedwa ndi mphamvu yokoka kuti zipirire kuwirikiza kawiri kuchuluka kwawo komwe adavotera asanayesedwe. Kwa fyuluta ya Black Berkey, izi zikutanthauza magaloni 6,000.
Monga ife, Jamie Young anakonza njira yothetsera mayesero a NSF/ANSI Standard 53, koma sichinadutse ndondomeko yonse ya Standard 53, yomwe inkafuna magaloni 6,000 a njira yowonongeka yomwe imagwiritsidwa ntchito ndi Black Berries kudutsa fyuluta. Iye adanena kuti m'mayesero ake fyulutayo idachitanso bwino ndi lead, zomwe zidatsimikizira zomwe tapeza. Komabe, adanena kuti sakukwaniritsanso mfundo zochotsa NSF atasefa pafupifupi magaloni 1,100 - kupitirira gawo limodzi mwa magawo atatu a moyo wa New Millennium womwe umati 3,000 galoni wa zosefera za Black Berkey.
Los Angeles County ikutsatira ndondomeko yosiyana ya EPA momwe chitsanzo chimodzi chokha cha 2-lita cha yankho lachitsanzo chimadutsa pa fyuluta. Mosiyana ndi ife ndi Achinyamata, chigawochi chinapeza kuti fyuluta ya Black Berkey inachotsa chloroform kuti iyese miyeso, pamenepa yoposa 99.8%, kuchoka pa 250 µg/L kufika kuchepera 0.5 µg/L.
Zotsatira zosagwirizana ndi kuyezetsa kwathu poyerekeza ndi zomwe zachokera ku ma lab awiri omwe Burkey adapereka zimatipangitsa ife kukayikira kuvomereza fyulutayi, makamaka pamene mungapeze njira zina zovomerezeka zomwe zimayankha mafunso onsewa.
Ponseponse, zoyeserera zathu zimagwirizana ndi zomwe tili: timalimbikitsa zosefera zamadzi zokhala ndi satifiketi ya NSF/ANSI, pomwe Berkey alibe ziphaso zotere. Izi zili choncho chifukwa miyezo ya certification ya NSF/ANSI ndi yokhwima kwambiri komanso yowonekera: aliyense akhoza kuwawerenga patsamba la NSF. Ma laboratories odziyimira pawokha omwe amavomerezedwa kuti ayese certification ya NSF / ANSI nawonso ndi ovomerezeka. Pamene tidalemba za bukhuli, tidalankhula ndi NSF ndipo tidaphunzira kuti zingawononge ndalama zoposa $ 1 miliyoni kuti tiyese kuyesa kwazinthu zonse zomwe New Millennium Concepts imati fyuluta ya Black Berkey imachotsa. New Millennium idati imakhulupirira kuti chiphaso cha NSF sichofunikira, kutchula mtengo ngati chifukwa china chomwe sichinayesedwe.
Koma ngakhale mosasamala kanthu za kusefera kwenikweni, pali zovuta zenizeni ndi fyulutayi kuti ndizosavuta kwa ife kupangira imodzi mwazosefera zathu zamadzi tisanavomereze Big Berkey. Choyamba, dongosolo la Berkey ndilokwera mtengo kwambiri kugula ndi kukonza kuposa fyuluta iliyonse yomwe timalimbikitsa. Mosiyana ndi zosefera zomwe timalimbikitsa, Berkey ndi yayikulu komanso yowoneka bwino. Zapangidwa kuti ziziyikidwa pa tebulo. Koma popeza ndi wamtali mainchesi 19, sichikwanira pansi pa makabati ambiri apakhoma, omwe nthawi zambiri amaikidwa mainchesi 18 pamwamba pa countertop. Berkey ndi wamtali kwambiri kuti agwirizane ndi masanjidwe ambiri a firiji. Mwanjira iyi, simungasungire madzi ku Berkey kuzizira (zomwe zimakhala zosavuta kuchita ndi kusankha kwa oyendetsa sitima ndi fyuluta). New Millennium Concepts imapereka bulaketi ya mainchesi 5 kuti ikhale yosavuta kuyika magalasi pansi pa chitoliro chachikulu cha Berkey, koma mabulaketi awa amawononga ndalama zambiri ndikuwonjezera kutalika kwa gawo lalitali kale.
Wolemba Wirecutter yemwe kale anali ndi Big Berkey analemba za chokumana nacho chake kuti: “Kupatulapo mfundo yakuti chipangizocho n’chachikulu mopusa, thanki yapamwambayo imatha kudzaza mosavuta ngati mwaiwala kukhuthula m’thanki yapansi. zolemetsa pang'ono komanso zochulukirapo ndipo zimayamba kusefa nthawi yomweyo. Chifukwa chake muyenera kuyikweza m'mwamba kuti mupangire malo sefa ya kaboni (yomwe ndi yayitali komanso yocheperako) ndikuyiyika pansi sinki isanayambe kudontha pansi kapena kauntala. “
Wirecutter mkonzi wina anali ndi Big Berkey (yomwe ili ndi fyuluta ya ceramic yosinthika) koma adasiya kuigwiritsa ntchito mwachangu. Iye anati: “Inali mphatso yochokera kwa mwamuna kapena mkazi wanga chifukwa ndinaona mmodzi kunyumba kwa mnzanga ndipo ndinaganiza kuti madzi amene anatuluka anali abwino kwambiri. “Kukhala ndi munthu wina inali nkhani yosiyana kwambiri. Malo a countertop, onse opingasa komanso ofukula, anali aakulu komanso ovuta. Ndipo sinki yakukhitchini yomwe tinkakhalamo inali yaing’ono kwambiri moti inali ntchito yaikulu kuyeretsa.”
Timawonanso eni ake ambiri akudandaula za kukula kwa algae ndi mabakiteriya ndipo, nthawi zambiri, ntchentche mu Great Berkies yawo. New Millenium Concepts imazindikira vutoli ndipo imalimbikitsa kuwonjezera Berkey Biofilm Drops kumadzi osefedwa. Ili ndi vuto lalikulu lomwe ogulitsa ambiri a Berkey apereka tsamba lonse.
Ogulitsa ambiri amavomereza kuti kukula kwa mabakiteriya kungakhale vuto, koma nthawi zambiri amanena kuti idzawonekera patatha zaka zingapo zogwiritsidwa ntchito, koma izi sizili choncho ndi akonzi athu. Iye anati: “Zinayamba pasanathe chaka. “Madziwa amakoma ngati nthiti, ndipo zipinda zakumwamba ndi zapansi zimayamba kununkha. Ndimatsuka bwino, ndikutsuka zosefera ndikuzichotsa kuti zifike ku tinthu tating'onoting'ono, ndikuonetsetsa kuti ndikutsuka mkati mwa mpope. Pafupi masiku awiri kapena atatu. Patapita masiku angapo kununkhiza kwa madzi kunayamba kukhala bwinobwino kenako n’kukhalanso nkhungu. Kenako ndinasiya Birki ndipo ndinakhumudwa kwambiri.”
Kuti muchotse ndere ndi mabakiteriya mu fyuluta ya Black Berkey, yeretsani pamwamba ndi Scotch-Brite, chitani zomwezo posungira pamwamba ndi pansi, ndipo potsirizira pake yendetsani njira ya bulichi kupyolera mu fyuluta. Pamafunika kusamalitsa kwambiri chinthu chopangidwa kuti anthu amve otetezeka ndi madzi awo.
Ngati mumasamala za kukonzekera tsoka ndipo mukufuna kuonetsetsa kuti muli ndi madzi abwino omwe amapezeka panthawi yadzidzidzi, timalimbikitsa kugwiritsa ntchito zinthu zosungira madzi zomwe zili mu Emergency Preparedness Guide. Ngati mukungofuna fyuluta yabwino yamadzi apampopi, tikupangira kuti muyang'ane fyuluta yovomerezeka ya NSF/ANSI, monga maupangiri athu ku Mitsuko Yabwino Yosefera Yamadzi ndi Zosefera Zabwino Kwambiri Pansi pa Sink Water.
Zosefera zambiri zokoka zimagwiritsa ntchito zida ziwiri zosiyana kuchotsa zonyansa m'madzi. Ma activated carbon adsorbs kapena mankhwala amamanga organic compounds, kuphatikizapo mafuta ndi zosungunulira mafuta, mankhwala ambiri ndi mankhwala ambiri. Utoto wosinthanitsa ndi ion umachotsa zitsulo zambiri zosungunuka m'madzi, m'malo mwa zitsulo zolemera kwambiri (monga lead, mercury ndi cadmium) ndi zopepuka, makamaka zosavulaza zitsulo zolemera (monga sodium, chigawo chachikulu cha mchere wapa tebulo).
Zosefera zathu zosefera (kuchokera ku Brita) ndi zosefera zapansi pansi (kuchokera ku 3M Filtrete) zidapangidwa motere. New Millennium Concepts sawulula zomwe fyuluta ya Black Berkey imapangidwa, koma ogulitsa angapo amatengera kapangidwe kake, kuphatikiza TheBerkey.com: "Zosefera zathu za Black Berkey zimapangidwa kuchokera kuphatikiziro lazinthu zopitilira zisanu ndi chimodzi. Fomula ili ndi mitundu yosiyanasiyana, kuphatikiza chipolopolo cha kokonati chapamwamba kwambiri, chonsecho chophatikizidwa munjira yophatikizika yomwe ili ndi machubu ang'onoang'ono mamiliyoni ambiri. ” Titadula muzosefera za Black Berkey, zidapangidwa ndi ma ion olowetsedwa okhala ndi midadada ya kaboni yosinthana ndi utomoni. Jamie Young akutsimikizira izi.
Tim Heffernan ndi mlembi wamkulu yemwe amagwira ntchito za mpweya ndi madzi komanso mphamvu zapakhomo. Yemwe adathandizira kale ku The Atlantic, Popular Mechanics ndi magazini ena adziko lonse, adalumikizana ndi Wirecutter ku 2015. Ali ndi mabasiketi atatu ndi zida za zero.
Zosefera zamadzi izi, mitsuko ndi zoperekera madzi ndizovomerezeka kuti zichotse zowononga ndikuwongolera madzi akumwa m'nyumba mwanu.
Titayesa akasupe 13 amadzi a ziweto (ndikusintha chimodzi kukhala chidole chotafuna), tidapeza kuti Kasupe wa Maluwa a Mphaka ndi abwino kwambiri amphaka ambiri (ndi agalu ena).
Wirecutter ndi ntchito yopangira zinthu za New York Times. Atolankhani athu amaphatikiza kafukufuku wodziyimira pawokha ndi (nthawi zina) kuyesa mwamphamvu kukuthandizani kupanga chisankho mwachangu komanso molimba mtima. Kaya mukuyang'ana zinthu zabwino kwambiri kapena malangizo othandiza, tikuthandizani kupeza mayankho olondola (koyamba).