Liquipak BAC 50 5L Benzalkonium Chloride Concentrated – powerful outdoor cleaner for roof cleaning, soft washing, patios, decking, paths & general exterior cleaning.

Great product and great results I will be ordering again when needed.

Everyone raves about the premixed products for patio cleaning. Well this works out significantly cheaper as a means of doing the job. Follow the instructions for the ratio of water required and safety. Make sure you’re wearing old clothes, gloves and protective eyewear. I mixed mine in a builders muck bucket and applied it to the patio with an old broom on a dry day. It dries in. And the sun and weather do the rest. My north facing, weedy and mossy patio is now considerably better than it was. I have to do more work to properly tidy it up. But as a low effort, starter for 10, this has been really good. The moss is dying, the weeds are unwell and the black staining on the paving is definitely lessening. It is effectively bleach, so don’t get it on flower beds and make sure you have shifted any garden furniture to where it can’t accidentally be splashed.

Fantastic biocide works really well

Arrived on time bac 50 cleans our block paving very well moss and weeds. Put it on with a watering can mindful of plants would like a proper measure in cup so now wast ....

product accurately described fast service

This is useful and better than the weaker types in garden centres

Used before very good clean moss on tarmac drive and paving

Excellent product. Excellent service