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Posted: 4/21/2017 12:56:05 PM EDT
The spa/hot tub deck, made of pressure treated wood, has black mold or something on it.  I'd like to remove this mold, clean the wood and then do what is needed to protect the wood.  The mold has been getting worse for a few years.  I'm looking for methods that don't harm the pressure treated wood.  I have read babble stating that chlorine bleach should not be used.  I did try mild chlorine bleach and Dawn on the wood, it had no effect.

What do you recommend?  How do you do this sort of thing?

Thanks in advance.

Mike S
Link Posted: 4/21/2017 1:15:27 PM EDT
This stuff really works. Your deck will continue to look even better for a week or so after you're finished. Like cleaner than when you were done washing it.

Just follow the instructions.

I scrubbed my deck with a brush while it was wet since it was getting pretty bad. Pressure washing every year just wasn't getting the green slime off it and it was getting progressively worse. I am so glad I found this stuff.


Link Posted: 4/21/2017 1:17:16 PM EDT
Pressure wash.

Seal with water sealant.
Link Posted: 4/21/2017 1:19:07 PM EDT
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Quoted:
This stuff really works. Your deck will continue to look even better for a week or so after you're finished. Like cleaner than when you were done washing it.

Just follow the instructions.

I scrubbed my deck with a brush while it was wet since it was getting pretty bad. Pressure washing every year just wasn't getting the green slime off it and it was getting progressively worse. I am so glad I found this stuff.


https://encrypted-tbn3.gstatic.com/shopping?q=tbn:ANd9GcShBMuIidqFUFfDAZbbcFQCk7SF9LA8LQtDNQZJp­ghFs7qH7xw&usqp=CAY
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You know what's cheaper and probably works better?

Going to the Dollar Store and buying bleach.
Link Posted: 4/21/2017 1:22:10 PM EDT
Pressure washer, let it dry, then paint it or use some kind of stain and seal product.

Repeat as needed.
Link Posted: 4/21/2017 1:24:43 PM EDT
TSP and water solution to wash.
Link Posted: 4/21/2017 1:27:09 PM EDT
Pressure wash. After it dries any mold/fungus treatment from Home Depot thats non staining. Then after that dries seal it with a couple coats. I had to deal with this in Oregon where the mold is rampant.
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