1. A na-eji anụ aṅụ mmiri ehiṅụọ nke ọma na nchekwa mmiri
2. O nwere ike inye ehi, ehi, inyinya wdg mmiri dị ọcha na ịdị ọcha
3. Mmiri na-ada nke ọmana ụbara, ka ahụ iru ala.
4. Plastic ihe, inogide, mfe iji na mgbe nchara,leakage.
5. Oke arụmọrụ, easy iji wụnye na kwatuo.
