Malangizo ogwiritsira ntchito:
1. Tsukani ndi madzi a tanki yoyamba musanagwiritse ntchito.
2. Ndibwino kuti tigwiritse ntchito pamodzi ndi mabakiteriya a nitrifying pamene thanki yatsopano imatsegulidwa, yomwe ndi yabwino kuti mwamsanga mukhazikitse dongosolo la mabakiteriya a nitrifying.
3.Itha kugwiritsidwa ntchito mu tanki yosefera yapansi kapena thanki yapamwamba ya fyuluta.Miyezi 3-6 iliyonse, imatha kutsukidwa mosavuta ndi choyambiriratank madzi.