Take some before of yours like it is now. Then wet, spray liberally about a 2% mix on it. Just do a 8’ section at a time. Let dwell about 10min and then hit with your 40 deg tip. You’ve got to get the dead wood off. Stay about a foot away, ( you want your swath to be about a board width wide. make 2 continuous fairly slow passes each board, one down and one up. Use a long wand if you have - you’re going to get dirty.
After you’ve gotten clean, If you want, throw some ox or acidic acid on there 1 cup per gal while it’s still damp and just rinse off after about 5 min. But if you’re not going to stain don’t worry about. Take afters while still wet and post on your FB business page and here.
The worse thing that can happen is it could fur just a tad, probably not at that strength, but it will lay down in a week or so and it’s a fence in the yard. Who cares. It will look a ton better than i does now and will dry to a nice light grey eventually if you don’t stain.
SH doesn’t clean. It just kills stuff and bleaches out color. Dissolve a cup of TSP in warm water and dump that in your pump sprayer along with the bleach.
Ok, so direct pressure is still needed then. I did hit the wood with my 25 degree tip which of course took that stuff off, but my customer’s fence is much longer than mine and I seriously doubt she’s going to pay $400+ for such a job. I was hoping this would be a ‘wax on, wax off’ sort of deal but doesn’t look like chems are going to be effective enough for an efficient cleaning. Oh well.
I’d pump spray 50/50 with a touch of surfactant in there. At least 10mins dwell.
White tip, go across all the bottoms first with the tip in a vertical position. It will help you start each panel without etching the wood. That’s the messy bit done
Then, go bottom to top each time. Never stop on a panel - keep the same distance and speed until the stream goes over the top of the panel. Repeat.
10 year old treated yp that had never had anything on it. Sodium percarbonate and turbo nozzle. Before and after and before staining. 980 l/f Wouldn’t rec the turbo nozzle because to easy to slip up and gouge wood but shadow box fences are a real pita
“Walk away.” -Dr. William Page. And me. That’s a headache job. Easier and same or better money made elsewhere. I’d say no thanks to “lichen” and “wooden fence” on the phone…
Add sodium hypochlorite, sodium hydroxide, orange ajax, and some ispopryl alcohol… put a mask on…wax on…wax off.
Downstream hydrochloric acid 40-1
Try this on your own fence, see the results…I’m not recommending everyone do this.but I’ve had great results so far…I HATE wood. I’m not about to take a pressure tip to every square inch.
Using fresh 14-15% SH is key though if using xjet.
I said I don’t recommend but this is what I do… so many chemicals? SH, Hydroxide, and Ajax, and isopropyl? That’s 4 lol Fumes? I never have fumes with these ingredients,
Isopropyl is a super weak acid
Did you know Jomax house wash that you add bleach to, main ingredient is an acid?
