Ihe 1.PVC, eriri isi na oyi akwa mkpuchi, mkpuchi mkpuchi okpukpu abụọ, na-eguzogide ọgwụ na-adọta
2.Rigorous ule, swing ekwe na ndị ọzọ na-egosi agafewo siri ike na a pụrụ ịdabere na ule, na-emeso ọ bụla nkọwa kpọrọ ihe.
3.Quick ụgwọ + nnyefe n'otu, nye egwuregwu zuru oke maka ịrụ ọrụ ma hụ na chaja na nnyefe data n'otu oge.