BAC 50 2x5L - Benzalkonium Chloride Concentrated 10L, For Roof Cleaning, Soft Washing, Decking and Outdoor Cleaning

Use this to finish off my roof cleans and yearly patio maintenance jobs.Works a treat. Foams up well too.

Used pre jet washing my block paving drive

Great for cleaning Yorkshire stone and any type of paving

Buying at a 50% solution saves significant sum as opposed to buying a 7% solution. This should last for ages. Wet and forget rapid is 37.5% (I think) so if you have a spare applicator container you should be able to replace with this (will need diluting down). Arrived 1 day early via APC, so I suggest you use the APC tracking service rather than Amazon. WEAR SUITABLE PPE at 50% this is not something to take a chance with. Especially a VISOR

Very good at removing alge from block paving. Can dilute down quite a bit 50 to 1 and still effective.

None

This product gets rid of moss quickly but seems to take a bit longer on black lichen.Will try pressure washer but think I may have to resort to wire brush.