* Sangalalani ndi chitonthozo cha chiguduli cha ubweya woyera mnyumba mwanu.Chovala chaubweyachi chimabwera mumtundu woyera wonyezimira womwe ungafanane ndi chipinda chilichonse.
* Wopangidwa ndi ubweya wa 100%, wofewa, wofewa komanso wopumira, thonje wogwirizana ndi chilengedwe kuti agwirizane bwino ndi nthaka.
kapeti waubweya wachilengedwe
kapeti waubweya wogulitsidwa