Ubu ni santimetero 9 z'uburebure bugororotse hamwe n'icyumba kimwe.Ibyumba byombi bifite ibiti 4 byintoki percolator.Irasa nigiti perc bong cyangwa ifu ifata bong kuko ntakindi cyumba cyumwotsi kigumaho.Rero, Biroroshye kubona neza mugihe amaboko menshi yibiti bya percolator ahari kandi umwotsi mubihaha byihuse.Igiti perc imbaraga umwotsi wogejwe mumazi byuzuye.Bongs zose hamwe nibikoresho bihuye.
