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3. Insert the drain hose into drainage adapter to make sure the water won't leak 
    out. The horizontal height of drain hose should not be higher than the drain 
    outlet. Do not block the drain outlet to make the condensate water can be 
    drained out smoothly. Please check drainage adapter and drain hose periodi-
    cally to see whether they are connected tightly and whether they are damaged 
   or blocked. 
Note:
Please make sure the drain hose is put along the direction of drain out of water 
bucket. Insert one end of drain hose into the floor drain and then cover the lid of 
floor drain. Please do not press and flatten the drain hose.