1.Whakaahuatanga:
Ko te tātari wiri whakapae he momo tino pai, he penapena hiko, he taputapu whakamaarama tika mo te filtration hau. He nui te whakamahi i roto i te matū, te hinu, te kai, te rongoa me etahi atu ahumahi. Kei a ia nga ahuatanga e whai ake nei:
1) filtration tino hiri, kahore leakage, kahore parahanga taiao.
2) ka kumea aunoa e te pereti mata te hanganga, he watea mo te mataki me te horoi.
3) tātari taha rua, rohe filtration nui me te nui o te para.
4) wiriwiri para para, whakaitihia te kaha mahi.
5) mana waipēhi, mahi aunoa.
6) ka taea te hanga i nga taputapu ki te kaha nui me te punaha filtration rohe nui.

2.Whakamahinga:
1) te whakaora i te keke tātari maroke, keke tātari ahua maroke me te tātari whakamaarama.
2) ahumahi matū: whanariki, konumohe pūkawa ngāwha, pūhui pūhui, kirihou, waikano takawaenga, bleaching wai, lubricating hinu tāpiritanga, polyethylene.
3) te ahumahi kai: te wai, te hinu, te atuaxing me te whakaheke, te whakaheke.

3. Technical parameter:

Mena he whakaritenga motuhake, ka taea e taatau te whakapai ake i runga i nga whakaritenga a nga kaiwhakamahi.

4.Maataapono mahi:
Ma te papu tātari ka pana te filtrate ki roto i te tank ka whakakiia ki roto i te tank. I raro i te mahi o te pehanga, ka haukotia nga poke totoka i roto i te filtrate e te kupenga tātari i runga i te filtrate, a ka hanga te keke tātari i runga i te kupenga tātari. Ka tātarihia te filtrate i roto i te tātari ki roto i te putorino putanga i roto i te tātari, katahi ka whiwhi te filtrate marama.
Na te piki haere o te wa filtration, ka mau tonu nga poke totoka ki runga i te kupenga tātari, ka piki ake te matotoru o te keke tātari, ka piki ake te parenga o te tātari me te pehanga o te tank. Ka piki ake te pehanga ki tetahi uara, me rere te para, ka mutu te filtrate i roto i te paipa, ka pupuhihia te hau ki roto i te tank e te putorino, ka tātarihia te tank. Te pehanga wai ki etahi atu ipu, ka pupuhi keke maroke. Katia te hau kōpeke, whakatuwhera i te rerererere takirere, tīmata te wiri, kia te wiri mata tātari, te keke tātari i runga i te wiri mata tātari, me te tuku i roto i te raro o te putanga para tank.