Wotofo serpent juice flow hard to turn

hi has anyone`s <a href="http://www.vapininthecape.com/eliquid_c_7.html”>juice flow ring become hard to turn. On these you cant take it apart for cleaning so i have used my ultrasonic cleaner but i still cant move my <a href="http://www.vapininthecape.com/eliquid_c_7.html”>juice flow without a vice.


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