Ezimweni zokusetshenziswa zangempela, ukuze kwenziwe ukufakwa kwamapayipi ensimbi engagqwali (izindololwane zensimbi engagqwali, amathayi ensimbi engagqwali, amakhanda ensimbi engagqwali amakhulu namancane, ama-flange ensimbi engagqwali, njll.) kube kuhle kakhulu futhi kuhlala isikhathi eside, kunokwelashwa okuhlukile kwendawo. Masisebenzise ukwelashwa kwendololwane yensimbi engagqwali njengesibonelo ukuze sethule izindlela zokwelashwa ezivamile.