Chii chinonzi dhamu?
Dhamu idziva rinodzivisa kuyerera kwemvura murwizi uye rinogadzira nyanza yokunyepedzera. Madamu anoshandiswa nokuda kwezvikonzero zvakasiyana. Mamwe madhamu anoshandiswa kuunganidza mvura nokuda kwezvinodikanwa zvamaindasitiri, zvokurima kana kuti kugovera mvura kumigero yemvura yavanhu. Kumwe kushandiswa kungava kwekugadzirwa kwesimba kunoshandisa magetsi emagetsi. Dzimwe nguva, zvinoreva kudzora kuyerera kwemvura kunoronga kudzivirira mafashamo kana kudzorerwa kwenyika.