Didn't work on efflorescence
EnviroSafe is described as the 'most potent masonry cleaner in the world' that 'cleans... retainer walls while dissolving all signs of efflorescence'.  I certainly was hopeful that it would take care of the unsightly efflorescence problem on my retaining walls, but after spraying a fairly strong mix of EnviroSafe on the wall blocks several times and scrubbing with a stiff brush several times, I noticed very little improvement.<br /><br />Before I bought EnviroSafe, I watched an online video that showed it removing efflorescence on some brick in about a minute with some scrubbing.  That seemed pretty quick and a reasonable solution to the efflorescence problem that's affecting 20-some wall blocks.  I worked on several blocks for at least 10 minutes each and the only thing I noticed was on the worst affected with a thicker accumulation of efflorescence, that it would 'chip' off in spots... far from 'dissolving all signs of efflorescence'. The wall blocks I used are only a year old and the efflorescence has not 'gone away' on it's own. The blocks have a rough surface, so maybe EnviroSafe only works well on smooth surfaces, as in the video.<br /><br />I'm really disappointed as this is pretty expensive stuff and I'm left with the same efflorescence problem that I started with.
Rating: 2 stars