Lezi yizikhwama zethu ezijwayelekile, ukuze kuhlangatshezwane nokukhathazeka kwekhasimende njengokusebenzisa isikhathi esisodwa, zama ukonga izindleko zokukhiqiza, sikhansele ukuhlola okuphelele, izinga lomkhiqizo elinesici lizoba ngu-1% -2%, sicela uqaphele.Kodwa sizokwenza ukuhlolwa kwezikhwama ezimbalwa phakathi ne-oda ngalinye, ukuze le ngxenye yezindleko zokukhiqiza igcinwe.