Liquipak Sodium Hypochlorite 20 Litres Patio Cleaner (4x5L) | High Strength 14-15% Concentration | Swimming Pool Liquid Chlorine & Black Spot Remover | Bleach Solution

I bought this to clear my patio of small black mold spots. IT WORKS Previously, I had tried pressure wash.......nope :( An alternative chemical--- sodium hydroxide.....nope A competitor's product (not the same chemical) ....nope The biggest challenge was working out how to apply. I settled on a paint pad on a pole with the sodium hypochlorite in a paint tray. 5L cleared about 50m^2 of indian sandstone patio. The spots of black mold fizzed and went white. I left it on for up to 30 mins and then washed the patio with a hose. Result= sparkling clean, all those lovely sandstone colours back to how they should be. Did it damage clothing? Not that i could tell.....I did do an immediate wash, just the same as i would with my swimming costume after being in a pool.

Great product

It is powerfull,cleans very well,where old clothes.

2 d ti.e I have used this product And it works

I use this for my swimming pool, much easier than granules. This was well priced, well packed and arrived quickly. Very pleased.

This stuff is seriously effective. I’ve used it on patios, concrete paths and even walls that were covered in algae, and it cuts through the green build‑up with no effort at all. It’s very strong, so it’s worth diluting it first and testing a small patch — leave it for about five minutes and it works its magic. Because it’s a heavy‑duty cleaner, make sure you wear eye protection, gloves and sensible footwear. Once you’re set up, it does exactly what you need and leaves everything looking fresh again.

Does what it says on the pack

Very good product