dual lance wands

I currently use a dual lance wand, mostly. When we 'dial' down the wand as in chemical injection mode, what do you think the pressure is ,say , half way 'down' ? I have never used this procedure in wood cleaning and was wondering if any of you know what the pressure would be at that setting ? or even all the way 'down' , at the lowest setting ?
Thanks to all who respond !!
Barry Loy

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Barry & Debbie Loy
Bar-De Pressure Washing
Graham, NC

Barry, you don't have to quess. You can put a pressure gauge going into your gun with a "T", or I noticed ********** has a gun with a built in port for a guage on top. This would be more accurate than going back to your machine to check the gauge there because of the length of hose and line resistance.

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Baldwin Power Wash, Inc. serving the Gulf Coast between Mobile, AL and Pensacola, FL.