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128-fl oz Deck Cleaner

Ratings & Reviews for Olympic 128-fl oz Deck Cleaner

4.0
296
Review
 4 out of 5
296 Reviews


78% Recommend this product

Ratings may include incentivized customer reviews.

What Customers Are Saying

The product effectively removes mold, mildew, and dirt from decks, often restoring them to a like-new appearance with minimal scrubbing. However, some users have experienced issues such as wood discoloration, residue, or damage to composite decking. It's important to follow instructions carefully, including letting the cleaner sit for the recommended time before rinsing and potentially using a brush for stubborn spots. While generally effective, a small percentage of users have had disappointing or damaging experiences, so testing the product on an inconspicuous area is advisable.

Customer review summary generated by AI, including incentivized reviews.
296 Customer Reviews

works well

Would Recommend

Easy to use with a pump sprayer. I scrubbed with a deck brush since my deck hadn't been cleaned in a while. I have a lot of nooks and crannies on the 3 layer deck with railings so I needed more than I thought I would.

October 2, 2017
Verified Purchaser
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Excellent result

Would Recommend

I used this as per instructions and it worked as advertised. I'm very pleased with this product and would highly recommend it

September 24, 2017

From olympicstains.com

Excellent cleaner

Would Recommend

I bought this to clean our porch that is about 28 years old. The porch had not been cleaned in years and is in a shaded area(lots of green stuff growing on it). I applied with a sprayer and saw grime coming off instantly. Once I rinsed the cleaner off, it was like a new porch. I am just going to seal it now instead of painting or staining it. I highly recommend this for wood. Be careful, though, as the cleaner gets very slick and I did fall when I walked over it. Another warning- wear old clothe...

September 12, 2017
Verified Purchaser
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Olympic cleaner worked wonders

Would Recommend

This product worked great. Our treated wood deck is three years old and I thought I would have too pressure wash my deck. To my surprise it worked great. Really!! I won't pressure wash again. Wood looks like new.

August 27, 2017
Verified Purchaser
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Cleaner

WARNING!! I just purchased 4 jugs (2.5 gal) of this to finish cleaning my fence. However one of the containers appeared to have a defective cap because it leaked onto me as I was carrying it from the cart to my truck ruining a new pair of shorts. The product does a fantastic job and I will continue to use it but it the future will always check the cap before selecting the jugs in the store. Before you buy this product check to se that the caps are screwed on tightly because one on the ones I...

July 31, 2017

From olympicstains.com

Response from Customer Service

Hi there, Sorry to hear the cap came off- that shouldn't have happened. Please call our customer care team at 1-800-426-6306 between 8am-5pm EST.

Customer ServiceAugust 1, 2017

Boom...no more yuck.

Would Recommend

Used this on our deck after gypsy caterpillar season. Wash works great, but i still had to scrub. Bleached out all the disgusting material left by those nasty bugs. One issue is watch for spray back. I got it on my shorts. They are now speckled from the bleach. Oh well. The deck looks great. Not sure how this could be biodegradable though. Kept my animals away.

July 4, 2017
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Deck cleaner

Would Recommend

Works well with out being super harsh . Definitely follow the instructions about sensitive plants and bushes.

June 30, 2017

From olympicstains.com

Great Product still needs scrubbing

Would Recommend

We used this on our deck which was in pretty rough shape. It looked amazing but it still ended up needing to be scrubbed. It didnt clean off all the algea but It made easy work of scrubbing afterwards. I definitely recommend this but keep in mind scrubbing will make it look even better afterwards.

June 16, 2017
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Light Grey

Would Not Recommend

This product is totally useless - put it on as directed, waited as directed and rinsed as directed and nothing happened. Had to power wash deck afterwards and then sand it to get all the dirt off. It is not as caustic as implied because it never hurt any plants. Did not even lift slight aging from planks that were not exposed directly to the weather. I have a much larger deck to do and I am not sure what I will use but it won't be this product. I can not say enough bad about it.

June 14, 2017

From olympicstains.com

Response from Customer Service

Hi there, We are sorry to hear that you are not satisfied with our deck cleaner and we want to make this right for you. Please call us at 1-800-426-63... Read More

Customer ServiceJune 15, 2017

WOW!!!

Would Recommend

Haven't cleaned our composite deck in years and tried other leave on products with disappointment... This worked immediately and my ivory rails weren't charcoal color anymore! Wow wow wow brand new look again! Thanks to the Lowes guy in the paint Dept!

June 11, 2017
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did not use paint

Would Not Recommend

I bought this product to clean the deck around a pool. I applied according to the directions. Sprayed on a dry deck then hosed it off. It did not remove very much of the dirt and left the deck very slippery. I had to power wash the deck to get the deck walk able.

June 11, 2017

From olympicstains.com

Response from Customer Service

Hi there, Sorry about this. Please give us a call at 1-800-426-6306 so we can help you out.

Customer ServiceJune 13, 2017

Works good but lesser coverage

Would Recommend

Although it didn't cover as much area as listed, I left it of extra long. The extra time was recommended by a previous reviewer, and really made a difference! With a bit of scrubbing, it left a nice final result!

May 30, 2017
Verified PurchaserVerified Pro
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WASTE OF TIME!

Would Not Recommend

IT WILL CLEAN YOUR DECK BUT BE READY TO SAND IT AFTERWORDS......USE SOME SOAP AND BLEACH WITH A BRUSH.....WILL WORK BETTER AND KEEP YOU FROM SANDING......COMPLETE JOKE

May 23, 2017

From olympicstains.com

Response from Customer Service

Hi there, Sorry that you are unhappy with our deck cleaner and we want to make this better for you. Please call our technical experts at 1-800-426-630... Read More

Customer ServiceMay 23, 2017

Not strong enough

Would Not Recommend

I tried using this cleaner and unless you are using a pressure washer, you're not going to get it clean with the product alone. I'd bet just the pressure washer would suffice.

May 3, 2017
Verified Purchaser
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Response from Olympic

Hello, Thank you for your feedback. We are sorry that you did not have a good experience with our deck cleaner and we want to help. Please call us at... Read More

OlympicMay 4, 2017

realy works

Would Recommend

To work right you will need a scrub brush with a long handle, and get ready to scrub. Looks good and you can see the crud rinse away,

April 25, 2017
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Olympic elite natural

Would Recommend

This is the only deck cleaner that I have used that actually works. I also used it on my concrete driveway and it now looks new. Do not know what caused some people problems, probably did not read directions.

April 22, 2017

From olympicstains.com

Deck Cleaner

This works awesome. Due to a problem with my pressure washer, I didn't even get to use it along with the cleaner, but I have a clean deck. I used it on my composite textured decking as well as removing the murky layer from my stained wood railing to give it a fresh coat of stain. Some tips: - Due to a breeze, I ended up applying with a paint roller on an extension pole, putting the product in a roller pan. Worked great with no over spray waste. Use a fluffy roller. - It WILL bleach any clo...

March 28, 2017

From olympicstains.com

Premium Deck Cleaner

Would Not Recommend

What an awful outcome. We bought this to clean our six month old deck prior to applying sealer/stain. Now, we have about 275 sq feet of white furry wood. We put far too much sweat and money into building this deck to have it look so awful. The bottle specifically says "no scrubbing necessary" but we even tried that in order to get the fuzz off. VERY DISAPPOINTED! Who is going to pay to fix this mess?

October 24, 2016

From olympicstains.com