Kugorora no gukata imashini ifite ireme ryiza, dutanga imashini nyinshi kubunini bwinshi, ubunini bwinshi dushobora gukora ni 3mm,
Umuvuduko 10-15m / min, kandi igiciro gihendutse kuruta kugabanuka kumurongo muremure, Mugihe kimwe, menya neza ko gukata neza.
Igikorwa cyoroshye cyo kunyerera kirashobora kongerwamo (bitarenze ibyuma 6, kunyerera cyane ni 70mm)