Need help, Can only find 15 % sh in my area in bulk how should I break it down for house and roof wash
With water
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You can ds 15% without cutting with water with the right ds injector
I have 8gpm pump and 20% down stream
Post pic of your machine
Will get it posted tomorrow
Are you saying you pull 4:1 through your injector? I gotta see this thing
He doesn’t. I’m not sure he has a machine, but I’m often wrong
Are you wanting to know how to dilute your SH? Most use about 4%-6% for roof mix and about .7%-1% for house wash mix. That’s after your down stream injector dilutes it. The algae should turn brown in about 5 minutes on houses. If you mix 50/50 with water and, the algae takes 15 minutes to turn brown, go with more SH and less water. I have to down stream straight SH with my machine. I could probably dilute it a little but I like how fast it kills the algae.
As far as roofs you can’t use a pressure washer to wash a roof. Do you have a 12v?
Getting a water dragon from power wash store
Just dilute the 15% SH down to whatever you need with water. It’s probably more likely 12.5% but might be 15% if it’s super fresh.
2.1 orifice 3-5 gpm injector downstream about 4 gallons of bleach to 1-2 gallons water plus surfactant. 250 feet of hose on an 8gpm. Works like a charm. Don’t overthink it. If the green turns brown and rinses away after or so mins then you’re good. If it doesn’t, add more bleach.
Thanks for the info
The last house I did was weird. It turned brown as usual but wouldn’t fully rinse off. I had to walk the roof and fan the vinyl with 800psi.
You won’t get 5-1 out of an 8 gpm with any DSI I know of. If it pulls super strong you might get close to 10-1.
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