Placed order today for the water meth kit plus the snap tight solenoid valve pre the nozzle. Comes with a single 500cc/min and 2 off 1000cc/min injector nozzles, plus there is a 250cc nozzle avail so I think I will allow for two mounts, 1/4npt each at the inlet to the s/c and try to source a 250cc nozzle as well. From what I can tell, I am going to ideally need water supply within the range of 440cc/min to 550cc/min, but could go as high as say 700cc/min depending on the boost I settle on. I think I can also graft some nozzles from a SNOW kit into mine if required as they have 350cc/min units as well, all simply mechanical. Nozzles are fuelled by the booster pump at 200psi and inject 2 micron droplets into the inlet. Below is the kit.
https://www.ebay.com/itm/292903642471