Uru:
1. Onye na-aṅụ mmiri ezì akpaaka na igwe anaghị agba nchara bụ ihe e ji emepụta ezì ka ọ ṅụọ nke ọma.
2. Onye na-aṅụ ọnụ ara igwe anaghị agba nchara nwere azuokokoosisi, nke ezi na-akwagharị site na-ata ata iji hapụ mmiri.
3. Igwe anaghị agba nchara, mgbochi corrosion na inogide, were were na-enye ịdị ọcha mmiri.
4. Mgbe ezi na-ewepụ ọnụ ya, azuokokoosisi laghachiri n'ọnọdụ mechiri emechi.
5. Dị elu nke ọma, chekwaa oge ma chekwaa mmiri na-enweghị mmiri mmiri.
6. Ihe nzacha plastik na-agbanwe agbanwe dị mfe ịgbanwe usoro mmiri nrụgide dị elu na usoro mmiri nrụgide dị ala.
