Patios Patio

Published on February 21st, 2018 | by Henri


Removing stains from decks and patios

The following questions both involve cleaning stubborn stains from decks and patios, so I have combined them into a single post.

Q.  We have a paver brick patio with an outdoor concrete fireplace and sidewalk leading up to this area to enjoy the great outdoors. Behind the fireplace is an Amur Maple tree that drops helicopters seasonally.

Unfortunately, they badly stain our paver bricks, fireplace, and sidewalk wherever they land. It is difficult to keep up with removal of them. We have tried using OxiClean on these ugly brown stains but have had limited success even if we leave the product on overnight.

Our paver bricks have a sealant that a professional applied recently but that top layer of sealant stains, too. HELP! What is the best way to remove these stains?

A.  I hope that the stains were completely removed before the sealant was applied, but if not, there are stuck underneath it.

I suggest you try to power wash the affected masonry and follow that with an application of ecoGeeks OXY-BOOST Oxygen Bleach ( Be sure to follow directions.

If this process removes the recently applied sealant, a new penetrating sealant is advisable.

Q.  A few weeks back, you had words of wisdom about how to get mold off a Trex deck. I have that problem so I carefully saved your answer. So carefully, that I have lost it.

I remember that you recommended a long-handled wire brush plus some kind of cleaning solution. Would you mind repeating what cleaning solution you should use? Thanks very much.

A.   A very effective solution I have used and recommended to painters who have raved about it after using it is as follows:

Mix 4 to 6 oz of Oxy-Boost in a gallon of hot water, to which add 1/4 teaspoon of dish detergent. Wash the deck boards with a stiff-bristle deck brush on a long handle.

Oxy-Boost is now only sold in 5-lbs., 10-lbs. and 20-lbs. containers. (The 5-lbs. size does not show on their web site, but they told me that it is available by request).

Even the 5-lbs. box should be far too much for this project, but Oxy-Boost does not spoil and it can be used for a lot of other cleaning jobs.

You can order Oxy-Boost on their web site:, or call them to order it. The phone number is 262-898-1522.

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