Kunezimpawu ezimbalwa ezikhombisa ukuthi isihlinzi sakho samanzi sidinga isihlungi esisha. Nazi ezinye ezivame kakhulu:

1. Iphunga elibi noma ukunambitheka: Uma amanzi akho enephunga elingavamile noma ukunambitheka, kungase kube uphawu lokuthi isihlungi sakho asisasebenzi kahle.

2. Isivinini sokuhlunga esinensayo: Uma isiphakeli sakho samanzi sithatha isikhathi eside kunokuvamile ukuhlunga amanzi, kungase kube uphawu lokuthi isihlungi sakho sivalekile futhi sidinga ukushintshwa.

3. Umfutho wamanzi ophansi: Uma ubona ukwehla komfutho wamanzi, kungase kube uphawu lokuthi isihlungi sakho sivalekile futhi sidinga ukushintshwa.

4. Inani eliphakeme lamalitha asetshenzisiwe: Izihlungi eziningi zinesikhathi sokuphila senani elithile lamalitha amanzi. Uma usebenzise inani eliphezulu lamagalani, sekuyisikhathi sokushintsha isihlungi.

5. Isibani senkomba yesihlungi: Ezinye izihlinzeki zamanzi ziza nesibani senkomba yesihlungi esizokhanya uma sekuyisikhathi sokushintsha isihlungi.