Change Player's 'Is In Water' Value

    I have been trying to create a set of boots that make it so you can use a trident with riptide without water. I have the armor and everything made. However, I don't know if there is a way to make it so that when the boots are worn, the player's "is in water" value is set to true.

    Any help is welcome.

  Thank You,

   -Babadoo