Rated 3.1 out of 5 by 12
Rated 4.0 out of 5.0 by Oceanside Used it on rocks on my waterfall
The rocks in my backyard waterfall tend to build up algae and moss and I use this product to help keep it clean. It doesn't do the job 100% but does remove most of the build-up in the waterfall.
Just hook it up to your garden hose and spray the area.
December 8, 2013
Rated 1.0 out of 5.0 by Br549 Nope
I followed the directions and I think my algae/mold actually LIKES this stuff. Made it turn greener and looks healthier than ever. That is not exactly what I had in mind...
May 17, 2014
Rated 4.0 out of 5.0 by Skippy Product great - applicator NOT!
Being a good steward of the environment, I bought this product fully expecting that it would perform well below the toxic alternatives. Not true. While it didn't kill on contact, it did the job as advertised albeit requiring three liberal applications (4 containers) over 5 days. And I suppose that was primarily because I mostly hosed off the moss from the peak and the edges rather than scraping or power washing as my roof is quite steep and I have no desire to crawl or climb on it. Well worth the investment - job well done. Wish I had a "before" picture but rest assured, they were ready to cancel my homeowners insurance if I didn't clean it up!
The hose connect applicator however was far less satisfactory. It leaked no matter how tightly I tweaked it and offered virtually no spray control - all or nothing - meaning I either sprayed a wide field that included windows, trees, power lines, and my neighbors yard or it dribbled drops that landed mostly on me. Next time - and I would buy this product again - I would use a separate spray applicator with more control and range.
May 21, 2013
Rated 5.0 out of 5.0 by JimL Works Very Well
Many cleaning products adversely affect metal around a window, so this spray is effective and safe.
The only thing I'd recommend adding is the spray setting mix ratio on the RTU packages because I have places where I need more range and switch to a hose sprayer with a tighter nozzle. [This review was collected as part of a promotion.]
July 22, 2016
Rated 3.0 out of 5.0 by orlando just ok not the best
it doen't work like the bad stuff, so i may need to get other moss killer
March 21, 2015
Rated 1.0 out of 5.0 by Bob73 Worthless
I first tried this product last year to try to get rid of the moss on my roof. It did no no good at all. I thought that maybe I had done something wrong the first time so I tried it again yesterday being careful to follow the directions. The directions say that the moss will start to turn brown after ten minutes--in fact its been 24 hours and the
moss is as bright green as it was before I sprayed . . . and the lichens are a nice healthy greenish white color. This product is a total waste of time and money. The photos are 24 hours AFTER application of the product!
September 21, 2015
Rated 4.0 out of 5.0 by bear amust purchase
The product did what i needed and cured the problem almost immediately
October 28, 2014
Rated 1.0 out of 5.0 by MJE1 Didn't remove anything and stained bricks.
It didn't remove the moss/algae and it stained the bricks/concrete. Huge waste of money and time!
March 11, 2014