Casey

Hi Rick, Thanks for clearing that up. Makes sense now.12% divided by 1.5% = 8. 1 gallon of 12% SH to 8 Gal of water. Just out of curiosity, do you have any idea what other problems I may encounter if it does not look right after drying? Just trying to be prepared. We won the bid and will be doing the job the last week of July. I will report back on how it turns out.

Hi Rick, Thanks for the reply. Yes there is definitely some algae/mold in areas of the deck. If I am doing my math right, would 1 gal of 12% NaClO + 4 Gal of water in a 5 gal bucket = a 1.5% solution of NaClO? I was kind of thinking something along this route since we have successfully cleaned some composite decks in a similar manner. I just did not know if it would be as effective on wood. I guess the 1.5% solution and no pressure would have the best chance of preserving the "patina". The customer has some compost bins built out of the same material so he said we can do all the testing we want on those.

Hi all! We had a request from a customer to clean a kiln dried white pine deck. He said the wood was called "Thermal Guard". I could not find any info about it via Google. He said is is not pressure treated. He wants the wood clean, but also want to preserve the "patina" of the wood. He said the wood had kind of an aged look to it when it was new. He does not want any stain applied after cleaning either. I know we could clean this one and make it look like new wood, but that is not what he is after. Any suggestions on this one? Thanks for any input!