spray bars

Hello everyone! I'm pretty new to prospecting, so I have a few questions for you all. I'm building an aluminum highbanker (4' x 10"). I have most of the static parts measured and assembled, but I need a little direction when adding the appropriate pump and spray bar setup. I've found...

I am using a 1200 gph 12v bilge pump & 1250 gph 12v bilge pump with two 1" x 12" pvc Spray bars. The pump hoses are not connected together, rather connected to two individual spray bars, but the pvc is connected together further down the box. What size holes and how far apart for adequate spray...