Ko te whānui piko o te tuke he 1.5 ngā wā o te whānui o te paipa (R=1.5D), e kiia ana he tuke roa-whāiti; ki te rite te whānui ki te whānui o te paipa (R=D), ka kiia he tuke poto-whāiti. Ko ngā tikanga tatau motuhake ko te tikanga 1.5 ngā wā o te whānui o te paipa, te tikanga pātoru, me ētahi atu, ā, me whiriwhiri kia rite ki te horopaki tono tūturu.
Ngā whakarōpūtanga noa:
Tuke roa-whānui: R=1.5D, he pai mō ngā āhuatanga e hiahia ana kia iti te ātete wai (pērā i ngā paipa matū).
Tuke porowhita-poto: R=D, e tika ana mō ngā āhuatanga he iti te wāhi (pērā i ngā paipa o roto o te whare).
Ngā tikanga tatau:
Tikanga 1.5 ngā wā o te diameter o te paipa:
Tātai: Pūtoro piko = Diameter paipa × 1.524 (whakaawhiwhia ki te tauoti tata).
Tikanga pātoru:
He pai mō ngā tuke koki kāore i te paerewa, me tatau te pūtoro tuturu i runga i te koki.
Ngā horopaki tono:
Tuke roa-whānui: Ka whakaiti i te ātete wai, he pai mō te kawe i tawhiti.
Tuke poto-whānui: Ka penapena wāhi engari ka nui ake pea te whakapaunga pūngao.
Wā tuku: Whiringa-ā-rangi 21-2025
