Everbuild 401 High Strength Brick and Patio Cleaner, 5 Litre[Amazon-developed Certification] Compact by Design

Working fantastic. Easy to use. Make sure to wear ppe. Photo 1 with the product, photo 2 without product.I used a plastic brush to apply this cleaner, little bubbles (acid) and cleaned fantastic.Some fumes, make sure using this product in a very well ventilated area.

Works but takes a few goes, I used it to clean up water staining on brick work from a dripping over flow pipe, staining had been there years. It took 3 goes but it looks alot better, you get best results I found with stiff scrubbing brush and wetting wall first.

It's hydrochloric acid and I use it in my pool as a ph reducer.

I brought this to remove dirt from very very old brick work it wasn’t great BUT !!! For cleaning my light porcelain patio tiles it’s EXTREMELY GOOD the best I have ever used I get water marks from watering my pots , it’s the dogs at getting rid of the water marks bird poop I would TOTALLY RECOMMEND THIS PRODUCT yep it’s good

It works fine on some of the patio but not other slabs , the red ones it did not even touch the green algae but it's a fantastic weed killer, weeds are dead in hours

Works well

Good product, have to scrub a lot but dose the job.

Works as well as any I have used to tidy up after pointing on slate cobbles. I'm in construction trade so have experience with similar products.