Prespray Temperature

Jim Davisson

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Aug 23, 2016
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Put an inline temp guage right before your hydroforce, it will remove all doubts about where you are really at laying down the chems. 2 bills ATM will be under 175° on a live reel that's been smoking it for a while. On a cold start don't sweat it, the hydroforce will pull chems at almost 100% until about 190°, then it boils at the cone of the venturi and it cavitates and pulls less chems. If you have a high heat machine increase the gun jet size a tick and reduce back pressure for better injection. Other tricks work as well.

It takes years of high temp use to wear out a block, the bottom of the brass nozzle inside the block wears first and needs replacement much sooner. If you use a SS nozzle you will get 3x the mileage easy. YMMV, but that's what I have seen for the most part over the years.
 

pgcleaner

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Matthew Olive
Yeah if we can all have some simple jobs like that it be awesome. They did answer the question. Rob has talked about this many times proper inline spray techniques. Vacuum spray set up the vacuum hoses safety door and then clean.
IT DRIES OUT.

Does it matter?! IDK!

If you are taking your time with the wand, you can only do about 400 sq. ft. before the rest of the house will be too dry. Add in a few greasy spots per room? Yeah, you ain't getting to that last 'bonus' room you sprayed 90 minutes ago. I usually spray and CRB the whole house (even big 1000 sq. ft. houses. I use encaps only though. I notice the 'stickyness' under my wand towards the end. Sometimes I'll re-mist the last few areas with my wand jets if they're too dry.

Maybe Rob Allen for Tom Forsythe could weigh in on this?
 

rob allen

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IT DRIES OUT.

Does it matter?! IDK!

If you are taking your time with the wand, you can only do about 400 sq. ft. before the rest of the house will be too dry. Add in a few greasy spots per room? Yeah, you ain't getting to that last 'bonus' room you sprayed 90 minutes ago. I usually spray and CRB the whole house (even big 1000 sq. ft. houses. I use encaps only though. I notice the 'stickyness' under my wand towards the end. Sometimes I'll re-mist the last few areas with my wand jets if they're too dry.

Maybe Rob Allen for Tom Forsythe could weigh in on this?
Good points. I personally like to spray way ahead. But after a room or two I’ll hold wand up and mist the remaining rooms lightly to keep the prespray damp. I’ll do one floor at a time though if it’s a two story.