The entity object now requires two_direction_only = false, to be able to rotate the four directions.
While at it, Steinio, could you change the update rate of the refill, maybe like only, every 10 ticks but increase the amount stored by 10x more, so it causes less changes on fluids and their propagation.
You mod has an update time of 1.something coz of this constant fluid amount change and changing it to every 10 ticks went down to 0.01!