YSK that washers need to be drained before you move or store them. An easy way to do this is by using a shop vac on the black hose on the back and letting it suck the water out.
from /r/YouShouldKnow
YSK认为，在移动或储存之前，需要将垫圈排空。一个简单的方法是用车间吸尘器吸住后面的黑色软管，让它把水吸出来。