Lanai Fabric Roll Down Screens
 

Anyone try the 30 second cleaner on the Fabric Roll Down Screens. They get mold and are very hard to clean. Mold Spots especially at night.

Distilled White Vinegar. It kills mold and prevents it from coming back. Bleach doesn't do that. Cleaning Concrete with Vinegar: 5 Things You Need to Know

30 Second outdoor cleaner is an excellent product. We hire a couple to clean the front and sides of our house, but we do the back ourselves because we don’t trust anyone else to not get cleaning products in our pool. We very carefully use 30 second on our pool deck, the birdcage screens, and vinyl siding on the back of the house. It works best if you first spray it on, wait a couple minutes, agitate it on the surface being cleaned, then thoroughly rinse it off. We use a stiff brush on the pool deck, a soft brush on the vinyl, and a big sponge on the birdcage screen. Takes about 2 1/2 hours for my wife and I to do the entire job once per year and it makes a big difference. Good luck with the project.

I personally just power washed the black stains off my driveway, but it took a long time, and it did damage my painted concrete.

Try attaching a round "surface cleaner" to your pressure washer. It reduces the pressure washing time significantly and cleans more uniformly than the tips.

I used a surface cleaner once a year because the stains and mold always came back.
Then I sealed it with this..
Amazon.com
No stains in three years.

Thanks, I'll try that.

Stain Defender question
 

Did it leave the concrete slick when wet? We worry about sealers that make wet concrete slippery.

Algae
 

I use a product called Wet and Forget. Hose end applicator, no scrubbing Works pretty well on my roof up north.

I was concerned about that too. But it's not slippery at all.
Although you can see it bead the water after three years.
btw, my 2 car plus GC driveway used 5 gallons total from a pump sprayer.

i prefer a bleach mix, however simple green also works and a pressure washer. Pretty easy. If you want to range out of the box then do an acid wash.

Either way once it's gone here's the keys of it

get rid of downspouts onto concrete
seal the concrete (2 coats)

that's all you have to do it won't come back if you do it the right way

Yes, I have. Just apply in the shade, not sun and rinse well. You can also use the wet and forget but not rinse.

Never use a pressure washer on plastics or vinyl. It will cause damage. Many outdoor items have a coating that offers protection from the elements, That coating is easily stripped off and then the surface is permanently wrecked.

I put myself on restriction using a power washer. Always costs me more to have things repaired after use.

When cleaning up, Dont forget YOUR CURB LINE IN THE STREET. :BigApplause: