– Spear and Jackson - 5L Spray and Leave Ready to Use formula with Long Hose Trigger Spray

Excellent product, works well and easy to apply.

Spray attachment didn't work, had to improvise

Admit I’m always a bit sceptical on these type of products as bought numerous “problem solvers “ over the years…but..actually done what so many reviews had said

The spray attachment is the wrong size for the bottle, doesn't screw onto it and doesn't work. You need a separate pump, so this isn't great value. The contents should work but will need reapplying. It has a strong bleach smell, and, if that's the main agent, it will need repeated treatments. Probably better for stone and concrete than wood, we'll see. Warning: wear googles, you don't want this in your eyes. Very irritating to the airways, wear a good mask so you don't breathe it in, and rubber gloves are a good idea.

Amazing

Absolutely garbage waste of money - just use a pressure washer. The spray attachment barely worked most of the time, it just constantly foamed up and I ended up just tipping it out and scrubbing with a brush and even on those tiles it's not done anything.

I’ve given this 4 stars as the spray gun didn’t work at all! I had to decant the product into a watering can. The product has worked very well. I had lots of algae on my porcelain tiles and it more or less lifted it straight away. My only problem was I didn’t buy enough to do the whole garden. I don’t understand why the seller hasn’t done something about the spray gun as so many of us have complained about it. If this worked you’d have the perfect product!

I I use it every year