They used a surface cleaner on the wood walkway. That’s why there’s a straight line of uncleaned wood along the edge. (edit: I see you already spotted that. I misread SC as SH and thought you were saying the SH did the damage).
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Lol. Fatdaddy had been doing his thing it looks like
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Can I steal these pictures? 
You go right on ahead, boy
Lol
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@SPC I took on another deck because I wanted to try something I found at Home Depot for $1.98.
Turns out it was a typo and supposed to say $9.98.
Well… the homeowner and I were pleasantly surprised with the results and got a deck done for $50.
Took about 45 minutes and used a bucket and a soft brush to apply it. Surprisingly effective for a $10 big box bottle.
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So it took 5 gal?
There are a lotta decks that need cleaning, but i dont try and push them and only take them if easy right now. Something that didnt take $100 of shipping to get here would make decks worth pushing cause they cud be an easy upsale in the shape some of them are in.
Took 1 gallon. Used the soft brush and spread it out and the stuff just peeled off. $10. If I wasn’t testing it I would’ve upcharged $150 with the house wash.
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You mix it 50/50. So 2 gallons of mix.
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Oh ok… will have to look into that it.
@squidskc that looks good…did u pre wet or just brush it on and rinse? Or did u let dwell for a few. I might stop by and get my a gallon to try out.
It’s worth a try.
Wet it down. Brush it on and keep it wet for 15 minutes. If it’s much bigger than this deck or it’s got stairs you’ll need two gallons. I was down to the bottom of the bucket.
Rinse off 1500 psi.
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At Publix supermarket, they will honor the sticker price even if it’s a typo
So what’s the active ingredient in that stuff?
I was surprised to read that my kids bath soap has sodium hydroxide
They honored the price.
I’m not sure what’s in it.
You should have ran back to get more! xP
It’s a 5% oxalic acid mix. You scare me sometimes. You could have gotten the exact same results by spraying a 2% bleach solution on with your 12v and washing off with no brushing or using Sodium Percarbonate. Oxalic acid is a pretty dangerous chemical. Don’t understand why you guys would ever use anything you didn’t know what was in it. You can’t let it get anywhere near a drain or fresh water.
Oxalic Acid Dihydrate
GHS Hazard Statements
Aggregated GHS information provided by 364 companies from 10 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Reported as not meeting GHS hazard criteria by 5 of 364 companies. For more detailed information, please visit ECHA C&L website
Of the 9 notification(s) provided by 359 of 364 companies with hazard statement code(s):
H302 (99.72%): Harmful if swallowed [Warning Acute toxicity, oral]
H312 (99.72%): Harmful in contact with skin [Warning Acute toxicity, dermal]
H315 (18.94%): Causes skin irritation [Warning Skin corrosion/irritation]
H318 (38.16%): Causes serious eye damage [Danger Serious eye damage/eye irritation]
H373 (18.94%): Causes damage to organs through prolonged or repeated exposure [Warning Specific target organ toxicity, repeated exposure]
Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown.
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I assumed some kind of oxalic which is why I brushed it on instead pump sprayer. Didn’t want it to atomize.
I’ve never felt comfortable using SH on wood though.
The only reason I tried it without knowing what it was is because homeowner grade stuff is usually designed so Joe Homeowner doesn’t kill himself with it. I didn’t even expect it to work, but it sure as heck did.
Two things that won’t change:
- I won’t be adding decks into the regular mix of work.
- My chemical usage will always scare you. Lol
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It’s in most soaps. A small quantity is used to balance the pH and make it less acidic.
I’d be more concerned with the sodium laurel sulfate. Look it up.
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I see it as a marketing tool for alternate goods, such ad “free thus or that”
Just like wine, cause grape have flavoids or anti oxidants wine is good for your heart.
So go drink wine!!
Lol
Only problem is that you will have yu drink so much to get it thy hat you will have to pass out.
It iui s cheaper or better to eat grapes.
Or get supplements.
