Kutsekereza madzi nembanemba zimagwiritsa ntchito pomanga makoma, madenga, ndi tunnel, misewu, zotayira pansi, etc., kukana madzi amvula kunja, pansi madzi seepage wa kusintha zinthu zomangira katundu kuti akhoza litapiringizidwa mu voliyumu, monga maziko a polojekiti ndipo palibe kutayikira pakati pa kugwirizana nyumba, ndiye chotchinga choyamba kwa polojekiti yonse yoletsa madzi, imakhala ndi gawo lofunika kwambiri pa polojekiti yonse. Zomwe zimayambira zimapangidwa ndi mphira wopangira kapena utomoni wopangira.

Ndibwino kuti mukuwerenga TER 4334;CO 054;3062E;S537-2;S501A;S537-3;S5890F;