Sodium Hypochlorite 20L Liquid Chlorine | High Strength, Swimming Pool 20 Litres

Wanted something to clean my drive. This worked well. My drive has a matt finish and this liquid not only cleaned the bricks but got rid of the weeds also. I used it on my patio to and it cleaned these stones up very well.

Cannot believe the difference this has made. !!!!Unfortunately my husband didn’t take a before photo to show.BELIEVE me our patio slabs were full of black spot and ground in dirt. Every year they have been done with our Karcher power wash but these results came with a brush and the liquid and wash off with a hosepipe only. Make sure instructions are followed and you leave on for the magic to work.Delivery was quick and will not hesitate to buy again.

Best price I could find and did the job on the pool (as the one the pool company used in the past which they charged double the price for!)

Does exactly what it says on the tub

After a decade my pressure washer had no effect on black spots that have built up over the years. Tried liquid 'patio cleaners' which had little effect and had to research it further; deciding to give sodium hypochlorite a go. I bought 14-15% sodium hypochlorite solution. Although it didn't specifically advise dilution I decided to dilute it 3 to 2 water parts.It works like MAGIC.First cleaned my patio with my Karcher T150 patio cleaner (photo after Karcher - see lots of black lichen spots). Then I applied the sodium hypochlorite solution using a 5 litre pump action pressure sprayer (didn't need a brush and scrub). The chemical gets into action zapping black spots within 2 hours. Bobs your uncle as shown in the other photo. I intend to wash the patio in due course.I wouldn't recommend diluting beyond 3 to 2 if your black spots are intense. Based on 3 to 2 dilution I managed to cover around 50 square metres. Money well spent. I now need to do my block paving driveway which is 130 square metres, using up almost the four 5L containers.Very pleased with the result.

I used this to clean up my platoon and steps that suffer algae and black moss due to a lot of shade.This chemical can be diluted to suit so goes a long way, very easy to use with excellent results. No need to use a jet wash just a normal hose to wash off. Do make sure you use the proper PPE especially face mask and goggles

Came highly recommended.. will buy again

We’ve used this produce for a few years now and it keeps our block paving around the bungalow spotless, no more pressure washing just dilute this down 3-1 and spray with a pump spray.We leave it down and the results are staggering it not only cleans the pavers but kills the moss and keeps it away.I do this twice a year and it keeps it looking like new all year around.