5L Brinton Patio Magic Power Sprayer (Ready to Use Spray) £5 @ Wilko (INSTORE ONLY)

Its a great price... but I did get 4 undiluted (without spray) for £22 from amazon (marketplace trader) earlier in year so though a £19.99 pricepoint is quoted its worth making your own stuff up as that even beats this £5 price. The multiple buys bring this in a lot cheaper on Amazon.This is a bargain though... and the product is incredibly good, but if you are looking to do an entire pation or a drive... get the undiluted stuff and put it on witha watering can. Its staggering how quickly it works.

I think I saw this for the same price in the Romford branch when I bought my 10p seeds!!

Love this stuff. Black spots on garden brick walls that won't power wash off however much you try. Put this on ....and nothing.
6 months later I noticed that they had all slowly faded and gone and left the wall totally clean. Be pateient.