1. Yoyenera kupanga 15-30L yosiyana kukula Chemical packaing jerrycan.
2. Adopt mosalekeza mtundu kufa mutu, mmwamba-kuwomba dongosolo, yabwino kwa mankhwala auto-deflashing pa intaneti, zidutswa zidutswa pa line, mankhwala anamaliza kuyezetsa kutayikira pa mzere, kutumiza, kulongedza katundu, etc., kuchepetsa mtengo ntchito ndi kuonjezera kupanga chiŵerengero.