Ruwa sha kwalban da aka yi da fari da kuma launin ruwa gilashi, bango kauri 1 ~ 1.2mm, bututun da aka saka a cikin 5 ~ 10 ~ 15 ~ 20 ~ 25 ~ 30 ~ 40 ~ 50ml sha ruwa. Lokacin da aka loda 5mLl ~ 50mL ruwa distilled, a 0.5 L / min ~ 0.5 L / min kwararar, juriya ya kamata ya kasance 4.7 ± 0.6KPa ~ 6.0 ± 0.6Kpa.