Aosite, kuba 1993
Ngokweemeko ezahlukeneyo, iihenjisi zensimbi ezingenasici ezisetyenzisiweyo ziyahluka. Sinokongeza ezi ezinye iimeko ukuze sifezekise ukuthenga okusebenzayo.
Oku kukwafuna ukuba wonke umntu athenge ihenjisi yensimbi engenasici efanelekileyo ngokweemfuno zabo, elula kakhulu. Wonke umntu kufuneka anikele ingqalelo kwezi mpawu xa uthenga. Imeko esisiseko inemiyalelo, kwaye ukuthenga iimveliso ezisekelwe kwimiyalelo nako kulungile.
Olu hlobo lwehinge yensimbi engenasici echazwe ngoku luthandwa kakhulu kwiimarike, kwaye kulula kakhulu ukuchaza ukusetyenziswa. Olu setyenziso luxhaphake kakhulu kushishino kwaye lubonisa ukongezwa kwezakhono ezahlukeneyo zomntu wonke.
Kodwa kulo lonke ishishini, ixabiso linayo "imithetho efihliweyo", kwaye umgangatho ufana kakhulu. Xa sithenga, kufuneka sinikele ingqalelo kwi penny.
Ishishini ngalinye lihlala litshintsha, nto leyo igxile ekukhuthazeni utshintsho lobuchwephesha. Xa iihenjisi zentsimbi engenasici zitshintsha kwixesha elizayo, kufuneka siqhubeke siphucula itekhnoloji kwaye senze lonke utshintsho kwimiba ethile. Singenza izinto ngokweshishini lonke. Ngokubhekiselele kwezinye iindlela, emva kokwenza utshintsho oluhle ngokwenene, ukuze lusebenze kushishino, kodwa lunokwenza abavelisi babengcono kushishino.