Pipe gallery trolley ke kotopo e hahiloeng ka tlas'a lefatše toropong, e kopanyang libaka tse fapaneng tsa liphaephe tsa boenjiniere tse kang matla a motlakase, mehala ea puisano, khase, mocheso le phepelo ea metsi le sistimi ea drainage. Ho na le boema-kepe bo khethehileng ba tlhahlobo, boema-kepe ba ho phahamisa le mokhoa oa ho beha leihlo, 'me moralo, moralo, kaho le taolo ea sistimi eohle li kopanngoe le ho kengoa tšebetsong.