Ko te rahinga tika o to taputapu puna te mea matua ki te whakarite i te punaha mahi nui.Ko te hoko i te punaha tātari he he te rahi ka puta he maha nga take kei te huarahi mo to puna.

I te tuatahi, tirohia te rahi o to puna kaukau i roto i nga karani.Mena kare ano koe i tatau i tenei i mua, korero mai ki a matou te rahi o to poka wai me te roa, te whanui, te hohonu, me nga ahua, te porowhita, te tapawha, te oval ranei.

Ma te rahi o te puna i roto i nga karani, ko te mea e whai ake nei ko te whiriwhiri i te tātari rahi tika me te papu e rite ana.Ko te tikanga e kii ana matou kia 5 haora mo ia huringa tātari mo to wai puna he paerewa mo te whiriwhiri i te punaha tātari.Engari ko te hoko i te rahinga tātari paku ake ehara i te mea kino.Ko te rahinga tātari nui ake ka pai ake, ka kaha ake i te rahi tonu e hiahiatia ana e to puna.Tangohia he tauira kia marama ake ai:

     te rōrahi o to tatou puna SP5512Bl he 26.61 mita pūtoru, to tatou tātari werohia-tank 1025 ki 450W papu ko te whiriwhiri tika.Mo te rerenga rere o te punaha tātari 1025 he 8.5 mita pūtoru ia haora, ko te tauira: 26.61/8.5=3.13 haora, ko te tikanga he 3 haora noa te whakaoti i te huringa tātari mo te puna kaukau me te tātari 1025.He tino pai tena.