You might want to try a final flush with alcohol to absorb the water. It also will evaporate much faster than water. Might not be a bad idea to put some dry gas (alcohol) in when you refill, just in case there's any moisture left in there.

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82 300SD 202K
82 300SD 233K
83 300TD 340K
82 300TD 98k euro (parts on the hoof)
85 300TD 282K
83 300TD 197K