Removing algae from the deck

[LeakySeals]

So I was pressure spraying with last year deck cleaner and I noticed the algae persisted. So then I tried some Dawn dish soap and a scrub brush and then pressure spray. Gone!

Is Dawn dish soap good for removing algae or was it just the scrubbing process of a wet deck giving false hope?

 

[Rand]

what deck material? Might need a stronger pressure washer.

It blows right off my trex decking. with my gas pressure washer.

 

[LeakySeals]

Originally Posted by Rand
what deck material? Might need a stronger pressure washer.

It blows right off my trex decking. with my gas pressure washer.

Lol. I wish it was Trex I can't afford it I have an 1800 PSI Electric and a 15 year old pt deck that takes a beating from the weather. It just seems like it's been worse this year I think because of all the rain

 

[WhizkidTN]

I highly recommend you try "Wet&Forget". A two gallon concentrate set of jugs (dilute 6:1) can be had at Costco for $20 - $25 and works without a pressure washer. Just use a pump sprayer. Go to their website and take a look.

Worked wonders for me on my vinyl siding, painted gutters, etc. If you just spray it on once a year, you are good to go.

https://www.wetandforget.com/product-selector.html

 

[demarpaint]

You need to kill the growth. Check this out, it works quite well. Jomax Solution

 

[RayCJ]

Originally Posted by demarpaint
You need to kill the growth. Check this out, it works quite well. Jomax Solution

Big thumbs-up on this Jomax stuff posted by demarpaint. I use the same stuff on my siding. Using an electric power washer with a mild bleach solution, I'd clean the algae off NE part of my house every year -and the next year it would come right back. One year after cleaning it my normal way, I followed-up with the Jomax stuff and it was algae free for 2 years after that. Now, once every 2 years, I put a light spray of Jomax on and the whole house stays algae free. I apply it with the spray attachment on the electric power washer. FWIW, I use a straight concentration in the sprayer bottle but, the electric sprayer dilutes it a very significant amount.

Anyhow, that stuff works!

Ray

 

[Rat407]

Wet and Forget is the bomb! I apply it once a year. Sure beats pressure washing our vinyl pool fence.

 

[spasm3]

I have used bleach with tsp powder added. I'm going to try the jomax.

 

[TheLawnRanger]

Originally Posted by demarpaint
You need to kill the growth. Check this out, it works quite well. Jomax Solution


This stuff saved me from having to buy a pressure washer. The north side of my house had never been cleaned when I bought it. The first application seemed to do nothing. Since I still had most of a jug left, I mixed up another batch. Stuff started dripping off the house before I had a chance to spray it with the hose. After letting it set, I used the hose and everything was as good as new.

JoMax also has a version for the roof. It did a good job on the roof but not as good as the original formula did on the house.

 

[Cujet]

Wet and Forget is really the modern answer. The active ingredient in Wet & Forget is Alkyl Dimethyl Benzyl Ammonium Chloride.

It's not a bleach, but a powerful antimicrobial. It takes months to work, and it may need to be applied bi-annually in some locations. But it works like nothing else and will actively keep it clean a very long time!

I have a large house with a white roof in South Florida. Instead of damaging the tiles with a pressure washer and eroding the white coating, Wet and Forget gets sprayed on my roof once every few years.

 

[doitmyself]

Wet & Forget has the same active ingredient in a product we use named Green-Shield II for commercial greenhouse disinfection and algae control: https://www.greenbook.net/basf-professional-and-specialty-solutions/green-shield-ii-disinfectant.

The signal word is DANGER, so handle this stuff according to the label.

 

[SatinSilver]

Originally Posted by doitmyself
It's the same active ingredient in a product we use named Green-Shield II for commercial greenhouse disinfection and algae control: https://www.greenbook.net/basf-professional-and-specialty-solutions/green-shield-ii-disinfectant.

The signal word is DANGER, so handle this stuff according to the label.


Same as what's in Wet and Forget? I wasn't sure which product you were referring to. I know W&F works very well but the fumes smell pretty toxic. So don't use it on a windy day.