I ētahi wā ka kitea e tātou kua waikura, kua paru rānei ngā here e mau ana ki te mīhini. Kia kore ai e pāngia te whakamahinga o ngā mīhini, kua noho ko te horoi i ngā here hei take tino nui. Kāore e taea te wehe i te tiaki i te mahi a ngā here mai i ngā kaihoroi. Mā te horoi me te tiaki i ngā here i ia wā anake ka taea ai te whakapai ake i te mahi a ngā here. Nō reira, i tēnei rā ka whakaatu ahau i ētahi kaihoroi e whakamahia whānuitia ana.

1. He mea horoi wairewa kua whakarewahia.

Ko ngā mea whakapūhui wairewa he mea hanga i ngā mea whakapūhui, te paru, ngā whakarewa, ngā kaihoroi, ngā aukati waikura, me te iti o te wai. Ko te mahi a te wai he whakarewa i te mea whakapūhui, e whakarewa ana i te paru i runga i te mata o te whakapiri, ā, i te wā kotahi ka waiho he kiriata ātete waikura i runga i te mata o te whakapiri. Ko te hopi horoi wairewa he hua hinu parakore kukū ka huri hei whakapūhui mā ina whakarewaina ki te wai. Ka pupuri ngā mea whakapūhui me ngā hopi horoi i ngā matūriki ka whakarewa i a rātou ki roto i ngā kaihoroi kei roto ngā whakarewa me ngā hinu.

2. He kaihoroi kawakore.

Ko ngā kaihoroi kawakore he mea hanga mai i ngā hopi horoi me ngā tote konganuku kawakore o ngā matū horoi. Me tata ki te 7 te pH o te kaihoroi. Ko ngā kaihoroi o tēnei momo kaihoroi ko ngā hauwai, ngā kāponāte, ngā phosphate, me ētahi atu. Ko ngā tote me ngā matū horoi o runga ake nei he mea hanga mō te horoi, ā, he iti noa iho te utu.