Ma ke kahua ākea o nā papahana mālama wai, pili kēlā me kēia kikoʻī i ka hoʻokaʻawale kūpono o nā kumu wai, ke kūpaʻa o ka ʻenekia wai a me ka hana kūpono o nā ʻano mea mālama wai. Ma waena o nā mea koʻikoʻi he nui, ʻo nā valves he mea kānalua ka loulou nui loa. Ua like ia me ka hui o nā papahana mālama wai, e kāohi ana i nā veins a me ke kuhikuhi o ke kahe wai. Ma waena o nā mea hana kiwi kūikawā he nui no nā papahana mālama wai, ʻo LIKE Valve (Tianjin) Co., Ltd. kū i waho i ka ʻoihana me kona ikaika ʻenehana koʻikoʻi, ʻenehana hana nani a me ka noʻonoʻo ʻana i nā lawelawe hana maʻamau, a ua lilo ia i hoa makemake no nā papahana mālama wai.