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認爲，在移動或儲存之前，需要將墊圈排空。一個簡單的方法是用車間吸塵器吸住後面的黑色軟管，讓它把水吸出來。