Ko te whare membrane kowiri tira 4040, e mohiotia ana ko te oko pehanga membrane, he hua taapiri mo te Reverse Osmosis, Microfiltration, Ultrafiltration, me nga punaha maimoatanga wai Nanofiltration me te whakamahi whanui i roto i nga momo kaupapa maimoatanga wai, rongoa, hikohiko, ahumahi matū.