Huge difference in chems,... Though the bleach (Its not an acid!) will kill plantlife in the short term too,...
It doesn't bleach flags, slabs, concrete, paint, brick, cars etc etc in my experience at all,.. BUT as with any chem take care. Pre-wet all around your work area before you begin, and rinse all around after. I use it to pre-spray really dirty footpaths etc before pressure washing as it makes the job much faster & easier. Its also really good for house washing where the walls are green with algae.
