Remove the #1 check module (Figure C) by inserting two flat blade screwdrivers into the slots on either side of the check module and gently pry the check module toward the open zone.

• 将两把平头螺丝刀插入到止回阀模块的每一侧，轻轻的将止回阀模块朝开口处撬，用此方法拆卸1号止回阀模块（图C）。