Because most mobile sprayers don’t work!! Here’s why:

• Many people think the electronic controller as used on anti-icer/de-icer sprayers will achieve calibration by itself.
• The truth is that the controller has all the necessary information and programs to operate the sprayer. When the pressurized liquid hits the nozzles, the problems begin.
• Unless the nozzles can adjust themselves like the controller adjusts itself, it’s impossible to spray the correct rate for the wide range of speeds.

Because Fixed Orifice Nozzles Don't Work:

• At slow speed, up to 15 MPH, the fixed orifice nozzle hole is too big for the low flow called out by the controller. So the nozzle can’t hold its spray pattern.
• If the ground speed override feature of the controller is on, the slower the sprayer goes, the more is applied per lane mile. This is the opposite of what the specs call for.
• At high speed, to go from 1 to 60 MPH is a 6000 percent increase in spray rates required. No fixed orifice nozzle has the capability to accommodate this large a change.
• Either way, at high speeds or low speeds, the fixed orifice nozzle won’t work. The sprayer will operate as required only in the middle speed range of 15-30 MPH.
• That’s why a variable orifice nozzle, the Spratronics O-Nozzle, is absolutely required, so the sprayer can meet the specifications and requirements of anti-icing/de-icing or prewetting at all speeds and application rates.