Leqhubu le batang lea otla, 'me lehloa lea oa. Serame sa mariha se nametse ka botlalo. Kaha mocheso o theoha haholo, re hopotsa bohle ka mofuthu ho eketsa liaparo tse teteaneng ka nako le ho etsa mosebetsi o motle oa ho ipoloka u futhumetse ebile u sireletsehile. Tsela e thella ha pula e na le lehloa, kahoo ka kopo fokotsa lebelo ha u le leetong ho sireletsa bophelo bo botle le polokeho ea hau le ea lelapa la hau.

Ntle le ho boloka 'mele oa motho o futhumetse, li-valve tsa lisebelisoa lefapheng la tlhahiso ea indasteri le tsona li hloka ho thibela ho hoamisa hantle le ho thibela ho tjhesa. Bakeng sa li-valve tsa liphaephe tsa oli indastering ea peterole, mocheso o tlase o ka baka ho tiea ha oli e tala le ho hoamisa liphaephe le ho thibana, e leng se amang ka kotloloho katleho ea lipalangoang 'me se baka likotsi tse ka bang teng tsa polokeho; bakeng sa li-valve tsa liphaephe tsa mouoane indastering ea lijo, ho se kenelle ho lekaneng ho tla fokotsa boleng ba mouoane, bo amanang le boleng ba sehlahisoa le polokeho ea tlhahiso; bakeng sa li-valve tsa lipalangoang tsa thepa indastering ea lik'hemik'hale, mocheso o tlase o ka baka ho petsoha ha 'mele oa li-valve le ho lutla ha thepa, ka liphello tse ke keng tsa nahanoa.

T?ireletso ea mariha ke boikarabello ba motho e mong le e mong, 'me Ho kenya thepa ka har'a sesebelisoa e ke ke ea hlokomolohuoa. Ke feela ka ho nahana ka t?ireletso ea mariha ea lisebelisoa tsa botho le ea tlhahiso re ka qetang mariha a batang hantle. E se eka mofuthu o ka ba le uena kamehla, 'me tlhahiso ea liindasteri tsohle e ka ba e sireletsehileng le e boreleli.