Le yi 12.5 intshi ubude obuthe tye bong kunye namagumbi amabini.Omabini amagumbi aneengalo zomthi weengalo ezili-11 ezifanayo.Ijongeka ngathi yi-perc bong yomthi okanye i-bong yokubamba uthuthu kuba akusekho magumbi okuhlala umsi.Ke, kulula ukufumana ukubetha ngokugudileyo xa iingalo ezininzi ze-percolator yomthi zikhona kwaye zifake umsi emiphungeni ngokukhawuleza.I-tree perc ibangela umsi ukuba uhlanjwe emanzini ngokupheleleyo.Zonke ii-bongs zinezixhobo ezihambelanayo.
