You put a pump (most of the time a 12v) in between the DS pick up hose so that instead of using suction you can “force” more SH into the overall system. So if you have a 2gpm pump forcing straight 12% in the line your overall mix hitting the surface will be a lot greater. I dont know the exact math on what the actual percentage would be but there are videos of a guy doing it. Even he doesn’t recommend it for roofs but just wanted to prove that it could be done. The only real upside to this is not having to carry around a bucket like having an xjet because the pump would still be on the truck/trailer.
Kind of what I figured.
I have a 12v also and I’m starting to use it to “force feed” my ds, I also use it for straight mix… anybody else use a 12v with a pressure switch so it feeds a constant pressure to injector?
I do it all the time when Cleaning nasty sidewalks. 2.2gpm pump brings DS down to 7 to 1 ratio. Works great kills injectors quick. Sometime in a day or 2 but speeds the job up and almost eliminates having to go back and spray with roof mix
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Also shortens the hose life it seems
Where do you purchase 12.5 SH?
Every region is different apparently. I go through a chemical supplier. Harcros and Eaton most specifically. Others go through farm & fleet and others go through pool stores. Depends on your area, is all I’ve gleaned from every post that I’ve seen about the topic.
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This is my second season in the cleaning business I’m just learning about roof cleaning here in Pennsylvania. Can anyone help me out on a mix that works great and won’t discolor or ruin the shingles on roofs or anything like that. I’ve heard of roof snot but how do you use it? Do you mix water with bleach and roof snot? I’d like to make a 55 gallon mix what do I need to mix to make 55 gallons of roof cleaning solution…
Roughly 3% sh hitting the roof plus your choice of surfactant. Say you are using 12% sh you’d mix 1 gal sh to 3 gal water.
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Where are you in PA
There are many factors that can make your mix more or less efficacious. Heat is a big one. In the absence of warmth, 3% is about half as strong as you’ll need. The steepness or pitch of the roof also determines how strong and how much (BTW, used Russ’s Snotmenade last week and boy is that stuff sticky on a roof. I give it 5 stars!)
Nonetheless, the way you asked your query displays your contempt for research. You’ll get the respect and help of the community if you invest some time studying BEFORE you ask questions like this.
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Search feature isn’t working…
It is. Use the one on the right side, not the one at the top.
Edit: Even the top one is working so…use both?
Thanks! I went back after posting and it worked…lol
Can someone draw a diagram of how this roof soft wash system is supposed to be? I’m new to this and this website is litterally the only advice I’ve ever gotten in this roof washing industry
From what I’ve read it goes…
- a ball valve before the gun
I bet @Jordie can help you out. They sell some nice kits.
If you’ve never done it before something so simple can seem like rocket science.
To start with I’d batch mix. I’ve seen a three way valve used to pull water/SH and surfactant. I am not sure how well that works?
But this is the correct setup of a rig??
You’re drawing kind of looks like a proportioner and it kind of doesn’t.
