I take it he doesn’t downstream anymore. Ouch.
I will say it would be interesting to have a system where a remote valve would shut off pressure pump flow, turn on an electric bleach pump and apply SH at various strengths needed through the pressure hose. You’d have a remote to adjust strength and switch back to rinse.
Then again a force-fed injector would accomplish much of that but we all know how far that gets. 
Call it the ‘Turbojector’.
They already make those
My competition has changed. Ive only duel hosed for 1 job, but it felt like it had real opportunity
I think downstreaming might be for the dinosaurs
Best of luck with the turbojector
You may fail to realize that most people here have had 12v systems for far longer than they’ve been downstreaming…we all quit using 2 hoses bc DSing is massively more efficient on siding. Like IBS said, your competition probably loves you doing it that way…
To be fair, we use the 12v on the siding a few times a year. It’s great to have it those times the injector dies and the tech forgot to replace his spares when he popped the last one on the machine…it’s way better than a pump sprayer in that case…
Ill have my injector for when i have problems with my 40p. From what ive gathered reading on this forum 12v aren’t the most reliable pieces of equipment. Maybe that’s why people wouldn’t use all day every day. I sure hope my 40p is bulletproof for what it cost me
Can’t speak for others, but reliability had zero part in why we changed processes. A dead 12v costs 5-10 minutes, I have a whole rack of them and a spare on every truck…we make that up several times over on the most basic housewash DSing it probably just not pulling the 2nd hose really)
Its a new process to me. Ill be trying again today. Doing a roof and going to be my own ground guy. Lol. I love the 2 hoses and buffer tanks and everything ive been without for the last 8 years
Now you definitely want that system for roof cleaning, unless it’s more of that tile down there you might not need it…99.9% asphalt shingles here…
I’ll take downstreaming for $400 Alex… The magic sauce is in the dwell time. If you search for flagstone in the forum, you’ll see some folks using all the way up to straight 12.5% on it. I downstream it. Don’t stand there & watch it dwell. Go soap up something else & come back to it. Give it another application if need be. It doesn’t require patience at all if you have a good routine in place. Soap up more stuff + longer dwell time = huge increase in efficiency. Not to mention the safety aspect of working with milder mixes. It takes less than 15 seconds to downstream a nice layer of soap on everything pictured below.
Water pressure IS what seats the ball on the o-ring creating the seal
The problem is using an elastomer for the seal.
It was not simple but I fixed it!
All I know is the last time my bleach tank had GERD, the little spring was broken.
I’ll be interested in that new injector when you get things ramped up.
The spring can come apart and damage the o-ring or lodge between the ball and o-ring.
As for my injectors, the 1st OP just competed today on the 100 unit run. They are pretty close to being in my hands!
The mix i use with the proportioner is less than when i was downstreaming with the 4 gallon. I can rinse or soap at anytime, which i did have to resoap 3 different spots today. That takes alot of time and chem through 220ft of hose. The ag hose is heavy so manage it properly. I just cleaned a 3000 sq ft stucco house, roof and pool cage/lanai in under 4 hours by myself without breaking a sweat. Same job out of the bed of my truck downstreaming with the 4 gal would have been a gruelling long day for sure. So different opinions. I did love downstreaming when it was all i had but things have changed
That is moving from 4gpm to 8gpm…almost a straight line 100% gain in efficiency, which would virtually cut your time in half alone. But maybe you are the first guy I know in the industry to find running a 12v more efficient, all else being equal…
He’s got a trailer load of new toys. Let him play with them. Odds are he’ll get figured out what works for him.
Hahaha!
