Issue with deck one year after cleaning

They don’t sell Oxalic as wood brightener for nothing, lol. I think if anything, you maybe let the ox sit too long. About 30 seconds is all it takes. Spray on - rinse off.

But as someone said, been sitting a year, probably wouldn’t hurt to hit it again unless maybe they’re going with a driftwood grey stain and they’re good to go.

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That third pic is from a year later.

If you read it quickly, it seems like it’s a week later from when he did the job. But he’s saying the pic was just taken a week ago…which is one year after he did the job.

I was referring to the 2nd pic with slight graying on spindles especially.

Not the “deck from ghosts past” 3rd pic lol

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Truer words were never spoken. Pressure washed mildew is so fine it can collect in the smallest cracks and crevices. So thorough rinsing makes a great difference. For three years I’ve done a fast food restaurant with concrete that was laid in the 1970’s. My gosh…if I don’t rinse thoroughly the tell tale signs are right back a week later. Rinse, rinse and rinse again!

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Yeah I’m a chronic over rinser but I feel like the quality of my end product is exceptional because I rinse well. I like to hit areas really well and then let them run and hit them again with a good final rinse after soap and dirt has time to drain a bit. Too many guys have the good enough approach hence why I rinse my truck more after going to the car wash and then leaf blow it dry haha.