Well, as Roberta pointed out I used the existing sprinkler system in place in my lawn. Extended vertically one of the heads in the landscape island with the three queen palms about 5 feet and then used a full circle spray head with internal filter to catch the liquified limestone. That upward spray caught all three palms and plants around the island. A smaller diameter tubing (1/4 inch) would have failed due to clogging.
My sprinkler system was sourced by a well and cleaning out the spray heads even with a in line filter was a regular chore for me.
found a pic of the island with an initial riser that only reached two of the schombos, I eventually extended it further to cover all 3 plants
BTW, on lower right side you see a boulder that has a massive encyclia ciliare growing on a rock, this makes it a lithophyte plant, same boulder used to have E tampensis growing on side, but they got crowded out.
here is E. ciliare in a clearer picture